From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- libgfortran/configure.ac | 577 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 577 insertions(+) create mode 100644 libgfortran/configure.ac (limited to 'libgfortran/configure.ac') diff --git a/libgfortran/configure.ac b/libgfortran/configure.ac new file mode 100644 index 000000000..86d716130 --- /dev/null +++ b/libgfortran/configure.ac @@ -0,0 +1,577 @@ +# Process this file with autoconf to produce a configure script, like so: +# aclocal && autoconf && autoheader && automake + +AC_PREREQ(2.64) +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 $with_cross_host. +# +# Do not delete or change the following two lines. For why, see +# http://gcc.gnu.org/ml/libstdc++/2003-07/msg00451.html +AC_CANONICAL_SYSTEM +target_alias=${target_alias-$host_alias} + +# Sets up automake. Must come after AC_CANONICAL_SYSTEM. Each of the +# following is magically included in AUTOMAKE_OPTIONS in each Makefile.am. +# 1.9.6: minimum required version +# no-define: PACKAGE and VERSION will not be #define'd in config.h (a bunch +# of other PACKAGE_* variables will, however, and there's nothing +# we can do about that; they come from AC_INIT). +# foreign: we don't follow the normal rules for GNU packages (no COPYING +# file in the top srcdir, etc, etc), so stop complaining. +# no-dist: we don't want 'dist' and related rules. +# -Wall: turns on all automake warnings... +# -Wno-portability: ...except this one, since GNU make is required. +AM_INIT_AUTOMAKE([1.9.6 no-define foreign no-dist -Wall -Wno-portability]) + +AM_MAINTAINER_MODE +AM_ENABLE_MULTILIB(, ..) + +# Handy for debugging: +#AC_MSG_NOTICE($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 + +# 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)' + toolexeclibdir='$(toolexecdir)/lib' + else + toolexecdir='$(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/$multi_os_directory ;; + esac + ;; +esac +AC_SUBST(toolexecdir) +AC_SUBST(toolexeclibdir) + +# Create a spec file, so that compile/link tests don't fail +test -f libgfortran.spec || touch libgfortran.spec + +# Check the compiler. +# The same as in boehm-gc and libstdc++. Have to borrow it from there. +# We must force CC to /not/ be precious variables; otherwise +# the wrong, non-multilib-adjusted value will be used in multilibs. +# As a side effect, we have to subst CFLAGS ourselves. + +m4_rename([_AC_ARG_VAR_PRECIOUS],[real_PRECIOUS]) +m4_define([_AC_ARG_VAR_PRECIOUS],[]) +AC_PROG_CC +m4_rename_force([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS]) + +# Add -Wall -fno-repack-arrays -fno-underscoring if we are using GCC. +if test "x$GCC" = "xyes"; then + AM_FCFLAGS="-I . -Wall -Werror -fimplicit-none -fno-repack-arrays -fno-underscoring" + ## We like to use C99 routines when available. This makes sure that + ## __STDC_VERSION__ is set such that libc includes make them available. + AM_CFLAGS="-std=gnu99 -Wall -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -Wextra -Wwrite-strings" + ## Compile the following tests with the same system header contents + ## that we'll encounter when compiling our own source files. + CFLAGS="-std=gnu99 $CFLAGS" +fi +AC_SUBST(AM_FCFLAGS) +AC_SUBST(AM_CFLAGS) +AC_SUBST(CFLAGS) + +# Check for symbol versioning (copied from libssp). +AC_MSG_CHECKING([whether symbol versioning is supported]) +AC_ARG_ENABLE(symvers, +AS_HELP_STRING([--disable-symvers], + [disable symbol versioning for libgfortran]), +gfortran_use_symver=$enableval, +gfortran_use_symver=yes) +if test "x$gfortran_use_symver" = xyes; then + save_LDFLAGS="$LDFLAGS" + LDFLAGS="$LDFLAGS -fPIC -shared -Wl,--version-script,./conftest.map" + cat > conftest.map < conftest.map < +#include +#include ], [ + getpwuid_r(0, NULL, NULL, 0, NULL); + ])], [libgfor_cv_posix_getpwuid_r="yes"], [libgfor_cv_posix_getpwuid_r="no"])]) +fi +if test "$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_DLLEXPORT +LIBGFOR_CHECK_ATTRIBUTE_ALIAS + +# Check out sync builtins support. +LIBGFOR_CHECK_SYNC_FETCH_AND_ADD + +# Check out thread support. +LIBGFOR_CHECK_GTHR_DEFAULT + +# Check out #pragma weak. +LIBGFOR_GTHREAD_WEAK + +# Various other checks on target +LIBGFOR_CHECK_UNLINK_OPEN_FILE + +# Check whether line terminator is LF or CRLF +LIBGFOR_CHECK_CRLF + +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 -- cgit v1.2.3