| # Process this file with autoconf to produce a configure script, like so: |
| # aclocal && autoconf && autoheader && automake |
| |
| AC_INIT([GNU Fortran Runtime Library], 0.3,,[libgfortran]) |
| AC_CONFIG_HEADER(config.h) |
| GCC_TOPLEV_SUBDIRS |
| |
| # ------- |
| # Options |
| # ------- |
| |
| AC_MSG_CHECKING([for --enable-version-specific-runtime-libs]) |
| AC_ARG_ENABLE(version-specific-runtime-libs, |
| AS_HELP_STRING([--enable-version-specific-runtime-libs], |
| [specify that runtime libraries should be installed in a compiler-specific directory]), |
| [case "$enableval" in |
| yes) version_specific_libs=yes ;; |
| no) version_specific_libs=no ;; |
| *) AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs]);; |
| esac], |
| [version_specific_libs=no]) |
| AC_MSG_RESULT($version_specific_libs) |
| |
| # Build with intermodule optimisations |
| AC_MSG_CHECKING([for --enable-intermodule]) |
| AC_ARG_ENABLE(intermodule, |
| AS_HELP_STRING([--enable-intermodule],[build the library in one step]), |
| [case "$enable_intermodule" in |
| yes) onestep="-onestep";; |
| *) onestep="";; |
| esac], |
| [onestep=""]) |
| AC_MSG_RESULT($enable_intermodule) |
| AM_CONDITIONAL(onestep,[test x$onestep = x-onestep]) |
| AC_SUBST(onestep) |
| |
| # Gets build, host, target, *_vendor, *_cpu, *_os, etc. |
| # |
| # You will slowly go insane if you do not grok the following fact: when |
| # building this library, the top-level /target/ becomes the library's /host/. |
| # |
| # configure then causes --target to default to --host, exactly like any |
| # other package using autoconf. Therefore, 'target' and 'host' will |
| # always be the same. This makes sense both for native and cross compilers |
| # just think about it for a little while. :-) |
| # |
| # Also, if this library is being configured as part of a cross compiler, the |
| # top-level configure script will pass the "real" host as $with_cross_host. |
| # |
| # Do not delete or change the following two lines. For why, see |
| # http://gcc.gnu.org/ml/libstdc++/2003-07/msg00451.html |
| AC_CANONICAL_SYSTEM |
| ACX_NONCANONICAL_TARGET |
| |
| target_alias=${target_alias-$host_alias} |
| AC_SUBST(target_alias) |
| |
| # Sets up automake. Must come after AC_CANONICAL_SYSTEM. Each of the |
| # following is magically included in AUTOMAKE_OPTIONS in each Makefile.am. |
| # 1.9.6: minimum required version |
| # no-define: PACKAGE and VERSION will not be #define'd in config.h (a bunch |
| # of other PACKAGE_* variables will, however, and there's nothing |
| # we can do about that; they come from AC_INIT). |
| # foreign: we don't follow the normal rules for GNU packages (no COPYING |
| # file in the top srcdir, etc, etc), so stop complaining. |
| # no-dist: we don't want 'dist' and related rules. |
| # -Wall: turns on all automake warnings... |
| # -Wno-portability: ...except this one, since GNU make is required. |
| AM_INIT_AUTOMAKE([1.9.6 no-define foreign no-dist -Wall -Wno-portability]) |
| |
| AM_MAINTAINER_MODE |
| AM_ENABLE_MULTILIB(, ..) |
| |
| # Handy for debugging: |
| #AC_MSG_NOTICE($build / $host / $target / $host_alias / $target_alias); sleep 5 |
| |
| # Are we being configured with some form of cross compiler? |
| # NB: We don't actually need to know this just now, but when, say, a test |
| # suite is included, we'll have to know. |
| if test "$build" != "$host"; then |
| LIBGFOR_IS_NATIVE=false |
| GCC_NO_EXECUTABLES |
| else |
| LIBGFOR_IS_NATIVE=true |
| fi |
| |
| AC_USE_SYSTEM_EXTENSIONS |
| |
| GCC_WITH_TOOLEXECLIBDIR |
| |
| # Calculate toolexeclibdir |
| # Also toolexecdir, though it's only used in toolexeclibdir |
| case ${version_specific_libs} in |
| yes) |
| # Need the gcc compiler version to know where to install libraries |
| # and header files if --enable-version-specific-runtime-libs option |
| # is selected. |
| toolexecdir='$(libdir)/gcc/$(target_alias)' |
| toolexeclibdir='$(toolexecdir)/$(gcc_version)$(MULTISUBDIR)' |
| ;; |
| no) |
| if test -n "$with_cross_host" && |
| test x"$with_cross_host" != x"no"; then |
| # Install a library built with a cross compiler in tooldir, not libdir. |
| toolexecdir='$(exec_prefix)/$(target_alias)' |
| case ${with_toolexeclibdir} in |
| no) |
| toolexeclibdir='$(toolexecdir)/lib' |
| ;; |
| *) |
| toolexeclibdir=${with_toolexeclibdir} |
| ;; |
| esac |
| else |
| toolexecdir='$(libdir)/gcc-lib/$(target_alias)' |
| toolexeclibdir='$(libdir)' |
| fi |
| multi_os_directory=`$CC -print-multi-os-directory` |
| case $multi_os_directory in |
| .) ;; # Avoid trailing /. |
| *) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;; |
| esac |
| ;; |
| esac |
| AC_SUBST(toolexecdir) |
| AC_SUBST(toolexeclibdir) |
| |
| # Create a spec file, so that compile/link tests don't fail |
| test -f libgfortran.spec || touch libgfortran.spec |
| |
| AC_LANG_C |
| # Check the compiler. |
| # The same as in boehm-gc and libstdc++. Have to borrow it from there. |
| # We must force CC to /not/ be precious variables; otherwise |
| # the wrong, non-multilib-adjusted value will be used in multilibs. |
| # As a side effect, we have to subst CFLAGS ourselves. |
| |
| m4_rename([_AC_ARG_VAR_PRECIOUS],[real_PRECIOUS]) |
| m4_define([_AC_ARG_VAR_PRECIOUS],[]) |
| AC_PROG_CC |
| m4_rename_force([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS]) |
| |
| AC_SUBST(CFLAGS) |
| |
| AM_PROG_CC_C_O |
| |
| # Add -Wall -fno-repack-arrays -fno-underscoring if we are using GCC. |
| if test "x$GCC" = "xyes"; then |
| AM_FCFLAGS="-I . -Wall -Werror -fimplicit-none -fno-repack-arrays -fno-underscoring" |
| ## We like to use C11 and C99 routines when available. This makes |
| ## sure that |
| ## __STDC_VERSION__ is set such that libc includes make them available. |
| AM_CFLAGS="-std=gnu11 -Wall -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -Wextra -Wwrite-strings -Werror=implicit-function-declaration -Werror=vla" |
| ## Compile the following tests with the same system header contents |
| ## that we'll encounter when compiling our own source files. |
| CFLAGS="-std=gnu11 $CFLAGS" |
| fi |
| |
| # Add CET specific flags if CET is enabled |
| GCC_CET_FLAGS(CET_FLAGS) |
| AM_FCFLAGS="$AM_FCFLAGS $CET_FLAGS" |
| AM_CFLAGS="$AM_CFLAGS $CET_FLAGS" |
| CFLAGS="$CFLAGS $CET_FLAGS" |
| |
| AC_SUBST(AM_FCFLAGS) |
| AC_SUBST(AM_CFLAGS) |
| AC_SUBST(CFLAGS) |
| |
| # Check for symbol versioning (copied from libssp). |
| AC_MSG_CHECKING([whether symbol versioning is supported]) |
| AC_ARG_ENABLE(symvers, |
| AS_HELP_STRING([--disable-symvers], |
| [disable symbol versioning for libgfortran]), |
| gfortran_use_symver=$enableval, |
| gfortran_use_symver=yes) |
| if test "x$gfortran_use_symver" != xno; then |
| save_LDFLAGS="$LDFLAGS" |
| LDFLAGS="$LDFLAGS -fPIC -shared -Wl,--version-script,./conftest.map" |
| cat > conftest.map <<EOF |
| FOO_1.0 { |
| global: *foo*; bar; local: *; |
| }; |
| EOF |
| AC_LINK_IFELSE([AC_LANG_PROGRAM([[int foo;]],[[]])],[gfortran_use_symver=gnu],[gfortran_use_symver=no]) |
| if test x$gfortran_use_symver = xno; then |
| case "$target_os" in |
| solaris2*) |
| LDFLAGS="$save_LDFLAGS" |
| LDFLAGS="$LDFLAGS -fPIC -shared -Wl,-M,./conftest.map" |
| # Sun ld cannot handle wildcards and treats all entries as undefined. |
| cat > conftest.map <<EOF |
| FOO_1.0 { |
| global: foo; local: *; |
| }; |
| EOF |
| AC_LINK_IFELSE([AC_LANG_PROGRAM([[int foo;]],[[]])],[gfortran_use_symver=sun],[gfortran_use_symver=no]) |
| ;; |
| esac |
| fi |
| LDFLAGS="$save_LDFLAGS" |
| fi |
| AC_MSG_RESULT($gfortran_use_symver) |
| AM_CONDITIONAL(LIBGFOR_USE_SYMVER, [test "x$gfortran_use_symver" != xno]) |
| AM_CONDITIONAL(LIBGFOR_USE_SYMVER_GNU, [test "x$gfortran_use_symver" = xgnu]) |
| AM_CONDITIONAL(LIBGFOR_USE_SYMVER_SUN, [test "x$gfortran_use_symver" = xsun]) |
| |
| # For GPU offloading, not everything in libfortran can be supported. |
| # Currently, the only target that has this problem is nvptx. The |
| # following is a (partial) list of features that are unsupportable on |
| # this particular target: |
| # * Constructors |
| # * alloca |
| # * C library support for I/O, with printf as the one notable exception |
| # * C library support for other features such as signal, environment |
| # variables, time functions |
| |
| AM_CONDITIONAL(LIBGFOR_MINIMAL, [test "x${target_cpu}" = xnvptx]) |
| |
| # Some compiler target support may have limited support for integer |
| # or floating point numbers – or may want to reduce the libgfortran size |
| # although they do have the support. |
| LIBGOMP_CHECKED_INT_KINDS="1 2 4 8 16" |
| LIBGOMP_CHECKED_REAL_KINDS="4 8 10 16" |
| |
| if test "x${target_cpu}" = xamdgcn; then |
| # amdgcn only has limited support for __int128. |
| LIBGOMP_CHECKED_INT_KINDS="1 2 4 8" |
| fi |
| AC_SUBST(LIBGOMP_CHECKED_INT_KINDS) |
| AC_SUBST(LIBGOMP_CHECKED_REAL_KINDS) |
| |
| # Figure out whether the compiler supports "-ffunction-sections -fdata-sections", |
| # similarly to how libstdc++ does it |
| ac_test_CFLAGS="${CFLAGS+set}" |
| ac_save_CFLAGS="$CFLAGS" |
| |
| # Check for -ffunction-sections -fdata-sections |
| AC_MSG_CHECKING([for gcc that supports -ffunction-sections -fdata-sections]) |
| CFLAGS='-Werror -ffunction-sections -fdata-sections' |
| AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[int foo;]])], [ac_fdsections=yes], [ac_fdsections=no]) |
| if test "$ac_test_CFLAGS" = set; then |
| CFLAGS="$ac_save_CFLAGS" |
| else |
| # this is the suspicious part |
| CFLAGS="" |
| fi |
| if test x"$ac_fdsections" = x"yes"; then |
| SECTION_FLAGS='-ffunction-sections -fdata-sections' |
| fi |
| AC_MSG_RESULT($ac_fdsections) |
| AC_SUBST(SECTION_FLAGS) |
| |
| # Check linker hardware capability support. |
| GCC_CHECK_LINKER_HWCAP |
| |
| # Find other programs we need. |
| AC_CHECK_TOOL(AS, as) |
| AC_CHECK_TOOL(AR, ar) |
| AC_CHECK_TOOL(RANLIB, ranlib, ranlib-not-found-in-path-error) |
| AC_PROG_MAKE_SET |
| AC_PROG_INSTALL |
| |
| # Configure libtool |
| #AC_MSG_NOTICE([====== Starting libtool configuration]) |
| AC_LIBTOOL_DLOPEN |
| AM_PROG_LIBTOOL |
| ACX_LT_HOST_FLAGS |
| AC_SUBST(enable_shared) |
| AC_SUBST(enable_static) |
| #AC_MSG_NOTICE([====== Finished libtool configuration]) ; sleep 10 |
| |
| # We need gfortran to compile parts of the library |
| #AC_PROG_FC(gfortran) |
| FC="$GFORTRAN" |
| AC_PROG_FC(gfortran) |
| |
| # extra LD Flags which are required for targets |
| case "${host}" in |
| *-darwin*) |
| # Darwin needs -single_module when linking libgfortran |
| extra_ldflags_libgfortran=-Wl,-single_module |
| ;; |
| esac |
| AC_SUBST(extra_ldflags_libgfortran) |
| |
| # We need a working compiler at that point, otherwise give a clear |
| # error message and bail out. |
| LIBGFOR_WORKING_GFORTRAN |
| |
| AC_SYS_LARGEFILE |
| |
| # Types |
| AC_TYPE_OFF_T |
| AC_TYPE_INTPTR_T |
| AC_TYPE_UINTPTR_T |
| AC_CHECK_TYPES([ptrdiff_t]) |
| |
| # check header files (we assume C89 is available, so don't check for that) |
| AC_CHECK_HEADERS_ONCE(unistd.h sys/random.h sys/time.h sys/times.h \ |
| sys/resource.h sys/types.h sys/stat.h sys/uio.h sys/wait.h \ |
| floatingpoint.h ieeefp.h fenv.h fptrap.h \ |
| fpxcp.h pwd.h complex.h xlocale.h) |
| |
| GCC_HEADER_STDINT(gstdint.h) |
| |
| AC_CHECK_MEMBERS([struct stat.st_blksize, struct stat.st_blocks, struct stat.st_rdev]) |
| |
| case "${host}--x${with_newlib}" in |
| mips*--xyes) |
| hardwire_newlib=1;; |
| nvptx*--xyes) |
| hardwire_newlib=1;; |
| esac |
| |
| # Check for library functions. |
| if test "${hardwire_newlib:-0}" -eq 1; then |
| # We are being configured with a cross compiler. AC_REPLACE_FUNCS |
| # may not work correctly, because the compiler may not be able to |
| # link executables. |
| AC_DEFINE(HAVE_MKSTEMP, 1, [Define if you have mkstemp.]) |
| AC_DEFINE(HAVE_STRTOF, 1, [Define if you have strtof.]) |
| AC_DEFINE(HAVE_SNPRINTF, 1, [Define if you have snprintf.]) |
| AC_DEFINE(HAVE_VSNPRINTF, 1, [Define if you have vsnprintf.]) |
| AC_DEFINE(HAVE_LOCALTIME_R, 1, [Define if you have localtime_r.]) |
| AC_DEFINE(HAVE_GMTIME_R, 1, [Define if you have gmtime_r.]) |
| AC_DEFINE(HAVE_STRNLEN, 1, [Define if you have strnlen.]) |
| AC_DEFINE(HAVE_STRNDUP, 1, [Define if you have strndup.]) |
| |
| # At some point, we should differentiate between architectures |
| # like x86, which have long double versions, and alpha/powerpc/etc., |
| # which don't. For the time being, punt. |
| if test x"long_double_math_on_this_cpu" = x"yes"; then |
| AC_DEFINE(HAVE_STRTOLD, 1, [Define if you have strtold.]) |
| fi |
| else |
| AC_CHECK_FUNCS_ONCE(getrusage times mkstemp strtof strtold snprintf \ |
| ftruncate chsize chdir getentropy getlogin gethostname kill link symlink \ |
| sleep ttyname sigaction waitpid \ |
| alarm access fork posix_spawn setmode fcntl writev \ |
| gettimeofday stat fstat lstat getpwuid vsnprintf dup \ |
| getcwd localtime_r gmtime_r getpwuid_r ttyname_r clock_gettime \ |
| getgid getpid getuid geteuid umask getegid \ |
| secure_getenv __secure_getenv mkostemp strnlen strndup newlocale \ |
| freelocale uselocale strerror_l) |
| fi |
| |
| # Check strerror_r, cannot be above as versions with two and three arguments exist |
| LIBGFOR_CHECK_STRERROR_R |
| |
| # Check for C99 (and other IEEE) math functions |
| GCC_CHECK_MATH_FUNC([acosf]) |
| GCC_CHECK_MATH_FUNC([acos]) |
| GCC_CHECK_MATH_FUNC([acosl]) |
| GCC_CHECK_MATH_FUNC([acoshf]) |
| GCC_CHECK_MATH_FUNC([acosh]) |
| GCC_CHECK_MATH_FUNC([acoshl]) |
| GCC_CHECK_MATH_FUNC([asinf]) |
| GCC_CHECK_MATH_FUNC([asin]) |
| GCC_CHECK_MATH_FUNC([asinl]) |
| GCC_CHECK_MATH_FUNC([asinhf]) |
| GCC_CHECK_MATH_FUNC([asinh]) |
| GCC_CHECK_MATH_FUNC([asinhl]) |
| GCC_CHECK_MATH_FUNC([atan2f]) |
| GCC_CHECK_MATH_FUNC([atan2]) |
| GCC_CHECK_MATH_FUNC([atan2l]) |
| GCC_CHECK_MATH_FUNC([atanf]) |
| GCC_CHECK_MATH_FUNC([atan]) |
| GCC_CHECK_MATH_FUNC([atanl]) |
| GCC_CHECK_MATH_FUNC([atanhf]) |
| GCC_CHECK_MATH_FUNC([atanh]) |
| GCC_CHECK_MATH_FUNC([atanhl]) |
| GCC_CHECK_MATH_FUNC([cargf]) |
| GCC_CHECK_MATH_FUNC([carg]) |
| GCC_CHECK_MATH_FUNC([cargl]) |
| GCC_CHECK_MATH_FUNC([ceilf]) |
| GCC_CHECK_MATH_FUNC([ceil]) |
| GCC_CHECK_MATH_FUNC([ceill]) |
| GCC_CHECK_MATH_FUNC([copysignf]) |
| GCC_CHECK_MATH_FUNC([copysign]) |
| GCC_CHECK_MATH_FUNC([copysignl]) |
| GCC_CHECK_MATH_FUNC([cosf]) |
| GCC_CHECK_MATH_FUNC([cos]) |
| GCC_CHECK_MATH_FUNC([cosl]) |
| GCC_CHECK_MATH_FUNC([ccosf]) |
| GCC_CHECK_MATH_FUNC([ccos]) |
| GCC_CHECK_MATH_FUNC([ccosl]) |
| GCC_CHECK_MATH_FUNC([coshf]) |
| GCC_CHECK_MATH_FUNC([cosh]) |
| GCC_CHECK_MATH_FUNC([coshl]) |
| GCC_CHECK_MATH_FUNC([ccoshf]) |
| GCC_CHECK_MATH_FUNC([ccosh]) |
| GCC_CHECK_MATH_FUNC([ccoshl]) |
| GCC_CHECK_MATH_FUNC([expf]) |
| GCC_CHECK_MATH_FUNC([exp]) |
| GCC_CHECK_MATH_FUNC([expl]) |
| GCC_CHECK_MATH_FUNC([cexpf]) |
| GCC_CHECK_MATH_FUNC([cexp]) |
| GCC_CHECK_MATH_FUNC([cexpl]) |
| GCC_CHECK_MATH_FUNC([fabsf]) |
| GCC_CHECK_MATH_FUNC([fabs]) |
| GCC_CHECK_MATH_FUNC([fabsl]) |
| GCC_CHECK_MATH_FUNC([cabsf]) |
| GCC_CHECK_MATH_FUNC([cabs]) |
| GCC_CHECK_MATH_FUNC([cabsl]) |
| GCC_CHECK_MATH_FUNC([floorf]) |
| GCC_CHECK_MATH_FUNC([floor]) |
| GCC_CHECK_MATH_FUNC([floorl]) |
| GCC_CHECK_MATH_FUNC([fmaf]) |
| GCC_CHECK_MATH_FUNC([fma]) |
| GCC_CHECK_MATH_FUNC([fmal]) |
| GCC_CHECK_MATH_FUNC([fmodf]) |
| GCC_CHECK_MATH_FUNC([fmod]) |
| GCC_CHECK_MATH_FUNC([fmodl]) |
| GCC_CHECK_MATH_FUNC([frexpf]) |
| GCC_CHECK_MATH_FUNC([frexp]) |
| GCC_CHECK_MATH_FUNC([frexpl]) |
| GCC_CHECK_MATH_FUNC([hypotf]) |
| GCC_CHECK_MATH_FUNC([hypot]) |
| GCC_CHECK_MATH_FUNC([hypotl]) |
| GCC_CHECK_MATH_FUNC([ldexpf]) |
| GCC_CHECK_MATH_FUNC([ldexp]) |
| GCC_CHECK_MATH_FUNC([ldexpl]) |
| GCC_CHECK_MATH_FUNC([logf]) |
| GCC_CHECK_MATH_FUNC([log]) |
| GCC_CHECK_MATH_FUNC([logl]) |
| GCC_CHECK_MATH_FUNC([clogf]) |
| GCC_CHECK_MATH_FUNC([clog]) |
| GCC_CHECK_MATH_FUNC([clogl]) |
| GCC_CHECK_MATH_FUNC([log10f]) |
| GCC_CHECK_MATH_FUNC([log10]) |
| GCC_CHECK_MATH_FUNC([log10l]) |
| GCC_CHECK_MATH_FUNC([clog10f]) |
| GCC_CHECK_MATH_FUNC([clog10]) |
| GCC_CHECK_MATH_FUNC([clog10l]) |
| GCC_CHECK_MATH_FUNC([nextafterf]) |
| GCC_CHECK_MATH_FUNC([nextafter]) |
| GCC_CHECK_MATH_FUNC([nextafterl]) |
| GCC_CHECK_MATH_FUNC([powf]) |
| GCC_CHECK_MATH_FUNC([pow]) |
| GCC_CHECK_MATH_FUNC([cpowf]) |
| GCC_CHECK_MATH_FUNC([cpow]) |
| GCC_CHECK_MATH_FUNC([cpowl]) |
| GCC_CHECK_MATH_FUNC([roundf]) |
| GCC_CHECK_MATH_FUNC([round]) |
| GCC_CHECK_MATH_FUNC([roundl]) |
| GCC_CHECK_MATH_FUNC([lroundf]) |
| GCC_CHECK_MATH_FUNC([lround]) |
| GCC_CHECK_MATH_FUNC([lroundl]) |
| GCC_CHECK_MATH_FUNC([llroundf]) |
| GCC_CHECK_MATH_FUNC([llround]) |
| GCC_CHECK_MATH_FUNC([llroundl]) |
| GCC_CHECK_MATH_FUNC([scalbnf]) |
| GCC_CHECK_MATH_FUNC([scalbn]) |
| GCC_CHECK_MATH_FUNC([scalbnl]) |
| GCC_CHECK_MATH_FUNC([sinf]) |
| GCC_CHECK_MATH_FUNC([sin]) |
| GCC_CHECK_MATH_FUNC([sinl]) |
| GCC_CHECK_MATH_FUNC([csinf]) |
| GCC_CHECK_MATH_FUNC([csin]) |
| GCC_CHECK_MATH_FUNC([csinl]) |
| GCC_CHECK_MATH_FUNC([sinhf]) |
| GCC_CHECK_MATH_FUNC([sinh]) |
| GCC_CHECK_MATH_FUNC([sinhl]) |
| GCC_CHECK_MATH_FUNC([csinhf]) |
| GCC_CHECK_MATH_FUNC([csinh]) |
| GCC_CHECK_MATH_FUNC([csinhl]) |
| GCC_CHECK_MATH_FUNC([sqrtf]) |
| GCC_CHECK_MATH_FUNC([sqrt]) |
| GCC_CHECK_MATH_FUNC([sqrtl]) |
| GCC_CHECK_MATH_FUNC([csqrtf]) |
| GCC_CHECK_MATH_FUNC([csqrt]) |
| GCC_CHECK_MATH_FUNC([csqrtl]) |
| GCC_CHECK_MATH_FUNC([tanf]) |
| GCC_CHECK_MATH_FUNC([tan]) |
| GCC_CHECK_MATH_FUNC([tanl]) |
| GCC_CHECK_MATH_FUNC([ctanf]) |
| GCC_CHECK_MATH_FUNC([ctan]) |
| GCC_CHECK_MATH_FUNC([ctanl]) |
| GCC_CHECK_MATH_FUNC([tanhf]) |
| GCC_CHECK_MATH_FUNC([tanh]) |
| GCC_CHECK_MATH_FUNC([tanhl]) |
| GCC_CHECK_MATH_FUNC([ctanhf]) |
| GCC_CHECK_MATH_FUNC([ctanh]) |
| GCC_CHECK_MATH_FUNC([ctanhl]) |
| GCC_CHECK_MATH_FUNC([truncf]) |
| GCC_CHECK_MATH_FUNC([trunc]) |
| GCC_CHECK_MATH_FUNC([truncl]) |
| GCC_CHECK_MATH_FUNC([erff]) |
| GCC_CHECK_MATH_FUNC([erf]) |
| GCC_CHECK_MATH_FUNC([erfcf]) |
| GCC_CHECK_MATH_FUNC([erfc]) |
| GCC_CHECK_MATH_FUNC([erfcl]) |
| GCC_CHECK_MATH_FUNC([j0f]) |
| GCC_CHECK_MATH_FUNC([j0]) |
| GCC_CHECK_MATH_FUNC([j1f]) |
| GCC_CHECK_MATH_FUNC([j1]) |
| GCC_CHECK_MATH_FUNC([jnf]) |
| GCC_CHECK_MATH_FUNC([jn]) |
| GCC_CHECK_MATH_FUNC([jnl]) |
| GCC_CHECK_MATH_FUNC([y0f]) |
| GCC_CHECK_MATH_FUNC([y0]) |
| GCC_CHECK_MATH_FUNC([y1f]) |
| GCC_CHECK_MATH_FUNC([y1]) |
| GCC_CHECK_MATH_FUNC([ynf]) |
| GCC_CHECK_MATH_FUNC([yn]) |
| GCC_CHECK_MATH_FUNC([ynl]) |
| GCC_CHECK_MATH_FUNC([tgamma]) |
| GCC_CHECK_MATH_FUNC([tgammaf]) |
| GCC_CHECK_MATH_FUNC([lgamma]) |
| GCC_CHECK_MATH_FUNC([lgammaf]) |
| |
| # Check for GFORTRAN_C99_1.1 funcs |
| GCC_CHECK_MATH_FUNC([cacos]) |
| GCC_CHECK_MATH_FUNC([cacosf]) |
| GCC_CHECK_MATH_FUNC([cacosh]) |
| GCC_CHECK_MATH_FUNC([cacoshf]) |
| GCC_CHECK_MATH_FUNC([cacoshl]) |
| GCC_CHECK_MATH_FUNC([cacosl]) |
| GCC_CHECK_MATH_FUNC([casin]) |
| GCC_CHECK_MATH_FUNC([casinf]) |
| GCC_CHECK_MATH_FUNC([casinh]) |
| GCC_CHECK_MATH_FUNC([casinhf]) |
| GCC_CHECK_MATH_FUNC([casinhl]) |
| GCC_CHECK_MATH_FUNC([casinl]) |
| GCC_CHECK_MATH_FUNC([catan]) |
| GCC_CHECK_MATH_FUNC([catanf]) |
| GCC_CHECK_MATH_FUNC([catanh]) |
| GCC_CHECK_MATH_FUNC([catanhf]) |
| GCC_CHECK_MATH_FUNC([catanhl]) |
| GCC_CHECK_MATH_FUNC([catanl]) |
| |
| # On AIX, clog is present in libm as __clog |
| AC_CHECK_LIB([m],[__clog],[AC_DEFINE([HAVE_CLOG],[1],[libm includes clog])]) |
| |
| GCC_CHECK_MATH_INLINE_BUILTIN_FALLBACK2([copysign], [double]) |
| GCC_CHECK_MATH_INLINE_BUILTIN_FALLBACK2([copysignl], [long double]) |
| GCC_CHECK_MATH_INLINE_BUILTIN_FALLBACK1([fabs], [double]) |
| GCC_CHECK_MATH_INLINE_BUILTIN_FALLBACK1([fabsl], [long double]) |
| |
| # Check whether the system has a working stat() |
| LIBGFOR_CHECK_WORKING_STAT |
| |
| # Check whether __mingw_snprintf() is present |
| LIBGFOR_CHECK_MINGW_SNPRINTF |
| |
| # Check whether libquadmath should be used |
| AC_ARG_ENABLE(libquadmath-support, |
| AS_HELP_STRING([--disable-libquadmath-support], |
| [disable libquadmath support for Fortran]), |
| ENABLE_LIBQUADMATH_SUPPORT=$enableval, |
| ENABLE_LIBQUADMATH_SUPPORT=yes) |
| enable_libquadmath_support= |
| if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then |
| enable_libquadmath_support=no |
| fi |
| |
| # Check whether we have a __float128 type, depends on enable_libquadmath_support |
| LIBGFOR_CHECK_FLOAT128 |
| |
| # Check for GNU libc feenableexcept |
| AC_CHECK_LIB([m],[feenableexcept],[have_feenableexcept=yes AC_DEFINE([HAVE_FEENABLEEXCEPT],[1],[libm includes feenableexcept])]) |
| |
| # At least for glibc, clock_gettime is in librt. But don't |
| # pull that in if it still doesn't give us the function we want. This |
| # test is copied from libgomp, and modified to not link in -lrt as |
| # libgfortran calls clock_gettime via a weak reference if it's found |
| # in librt. |
| if test "$ac_cv_func_clock_gettime" = no; then |
| AC_CHECK_LIB(rt, clock_gettime, |
| [AC_DEFINE(HAVE_CLOCK_GETTIME_LIBRT, 1, |
| [Define to 1 if you have the `clock_gettime' function in librt.])]) |
| fi |
| |
| # Check for SysV fpsetmask |
| LIBGFOR_CHECK_FPSETMASK |
| AC_CHECK_TYPES([fp_except,fp_except_t], [], [], [[ |
| #ifdef HAVE_IEEEFP_H |
| #include <ieeefp.h> |
| #endif |
| #include <math.h> |
| ]]) |
| AC_CHECK_TYPES([fp_rnd,fp_rnd_t], [], [], [[ |
| #ifdef HAVE_IEEEFP_H |
| #include <ieeefp.h> |
| #endif |
| #include <math.h> |
| ]]) |
| |
| # Check whether we have fpsetsticky or fpresetsticky |
| AC_CHECK_FUNC([fpsetsticky],[have_fpsetsticky=yes AC_DEFINE([HAVE_FPSETSTICKY],[1],[fpsetsticky is present])]) |
| AC_CHECK_FUNC([fpresetsticky],[have_fpresetsticky=yes AC_DEFINE([HAVE_FPRESETSTICKY],[1],[fpresetsticky is present])]) |
| |
| # Check for AIX fp_trap and fp_enable |
| AC_CHECK_FUNC([fp_trap],[have_fp_trap=yes AC_DEFINE([HAVE_FP_TRAP],[1],[fp_trap is present])]) |
| AC_CHECK_FUNC([fp_enable],[have_fp_enable=yes AC_DEFINE([HAVE_FP_ENABLE],[1],[fp_enable is present])]) |
| |
| # Check if _SOFT_FLOAT is defined |
| AC_CHECK_DEFINE([_SOFT_FLOAT],[have_soft_float=yes]) |
| |
| # Runs configure.host to set up necessary host-dependent shell variables. |
| # We then display a message about it, and propagate them through the |
| # build chain. |
| . ${srcdir}/configure.host |
| AC_MSG_NOTICE([FPU dependent file will be ${fpu_host}.h]) |
| AC_MSG_NOTICE([Support for IEEE modules: ${ieee_support}]) |
| FPU_HOST_HEADER=config/${fpu_host}.h |
| AC_SUBST(FPU_HOST_HEADER) |
| |
| # Whether we will build the IEEE modules |
| AM_CONDITIONAL(IEEE_SUPPORT,[test x${ieee_support} = xyes]) |
| AC_SUBST(IEEE_SUPPORT) |
| |
| # Some targets require additional compiler options for IEEE compatibility. |
| IEEE_FLAGS="${ieee_flags}" |
| AC_SUBST(IEEE_FLAGS) |
| |
| # Conditionalize the makefile for this target machine. |
| tmake_file_= |
| for f in ${tmake_file} |
| do |
| if test -f ${srcdir}/config/$f |
| then |
| tmake_file_="${tmake_file_} \$(srcdir)/config/$f" |
| fi |
| done |
| tmake_file="${tmake_file_}" |
| AC_SUBST(tmake_file) |
| |
| |
| # Check for POSIX getpwuid_r |
| # |
| # There are two versions of getpwuid_r, the POSIX one with 5 |
| # arguments, and another one with 4 arguments used by at least HP-UX |
| # 10.2. |
| if test "$ac_cv_func_getpwuid_r" = "yes"; then |
| AC_CACHE_CHECK([POSIX version of getpwuid_r with 5 arguments], libgfor_cv_posix_getpwuid_r, [ |
| AC_LINK_IFELSE([AC_LANG_PROGRAM([ |
| #include <stdio.h> |
| #include <sys/types.h> |
| #include <pwd.h>], [ |
| getpwuid_r(0, NULL, NULL, 0, NULL); |
| ])], [libgfor_cv_posix_getpwuid_r="yes"], [libgfor_cv_posix_getpwuid_r="no"])]) |
| fi |
| if test "$libgfor_cv_posix_getpwuid_r" = "yes"; then |
| AC_DEFINE([HAVE_POSIX_GETPWUID_R], [1], [Define to 1 if we have POSIX getpwuid_r which takes 5 arguments.]) |
| fi |
| |
| |
| # Check out attribute support. |
| LIBGFOR_CHECK_ATTRIBUTE_VISIBILITY |
| LIBGFOR_CHECK_ATTRIBUTE_ALIAS |
| |
| # Check out atomic builtins support. |
| LIBGFOR_CHECK_ATOMIC_FETCH_ADD |
| |
| # Check out #pragma weak. |
| LIBGFOR_GTHREAD_WEAK |
| |
| # Check out weakref support. |
| LIBGFOR_CHECK_WEAKREF |
| |
| # Various other checks on target |
| LIBGFOR_CHECK_UNLINK_OPEN_FILE |
| |
| # Check whether line terminator is LF or CRLF |
| LIBGFOR_CHECK_CRLF |
| |
| # Check whether we support AVX extensions |
| LIBGFOR_CHECK_AVX |
| |
| # Check wether we support AVX2 extensions |
| LIBGFOR_CHECK_AVX2 |
| |
| # Check wether we support AVX512f extensions |
| LIBGFOR_CHECK_AVX512F |
| |
| # Check for FMA3 extensions |
| LIBGFOR_CHECK_FMA3 |
| |
| # Check for FMA4 extensions |
| LIBGFOR_CHECK_FMA4 |
| |
| # Check if AVX128 works |
| LIBGFOR_CHECK_AVX128 |
| |
| # Determine what GCC version number to use in filesystem paths. |
| GCC_BASE_VER |
| |
| AC_CACHE_SAVE |
| |
| if test ${multilib} = yes; then |
| multilib_arg="--enable-multilib" |
| else |
| multilib_arg= |
| fi |
| |
| # Write our Makefile and spec file. |
| AC_CONFIG_FILES([ |
| Makefile |
| libgfortran.spec |
| ]) |
| AC_OUTPUT |
