* acinclude.m4 (LIBGFOR_CHECK_UNLINK_OPEN_FILE): Add check to see

[pf3gnuchains/gcc-fork.git] / libgfortran / configure.ac

diff --git a/libgfortran/configure.ac b/libgfortran/configure.ac
index 6fd3f50..41dc7e6 100644 (file)
--- a/libgfortran/configure.ac
+++ b/libgfortran/configure.ac
@@ -68,8 +68,6 @@ else
   LIBGFOR_IS_NATIVE=true
 fi
 
-TL_AC_GCC_VERSION([$srcdir/..])
-
 # Calculate toolexeclibdir
 # Also toolexecdir, though it's only used in toolexeclibdir
 case ${version_specific_libs} in
@@ -78,7 +76,7 @@ case ${version_specific_libs} in
     # and header files if --enable-version-specific-runtime-libs option
     # is selected.
     toolexecdir='$(libdir)/gcc/$(target_alias)'
-    toolexeclibdir='$(toolexecdir)/'${gcc_version}'$(MULTISUBDIR)'
+    toolexeclibdir='$(toolexecdir)/$(gcc_version)$(MULTISUBDIR)'
     ;;
   no)
     if test -n "$with_cross_host" &&
@@ -111,12 +109,15 @@ m4_define([_AC_ARG_VAR_PRECIOUS],[])
 AC_PROG_CC
 m4_rename([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS])
 
-AC_SUBST(CFLAGS)
-
 # Add -Wall if we are using GCC.
 if test "x$GCC" = "xyes"; then
-  CFLAGS="$CFLAGS -Wall"
+  AM_FCFLAGS="-Wall"
+  ## 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"
 fi
+AC_SUBST(AM_FCFLAGS)
+AC_SUBST(AM_CFLAGS)
 
 # Find other programs we need.
 AC_CHECK_TOOL(AS, as)
@@ -140,13 +141,22 @@ FC="$GFORTRAN"
 AC_PROG_FC(gfortran)
 FCFLAGS="$FCFLAGS -Wall -fno-repack-arrays -fno-underscoring"
 
+# 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)
+
 AC_SYS_LARGEFILE
 AC_FUNC_MMAP
 AC_TYPE_OFF_T
 
 # check header files
 AC_STDC_HEADERS
-AC_HAVE_HEADERS(stdlib.h stdio.h string.h stddef.h math.h unistd.h)
+AC_HAVE_HEADERS(stdlib.h stdio.h string.h stddef.h math.h unistd.h signal.h)
 AC_CHECK_HEADERS(time.h sys/params.h sys/time.h sys/times.h sys/resource.h)
 AC_CHECK_HEADERS(sys/mman.h sys/types.h sys/stat.h ieeefp.h)
 AC_CHECK_HEADER([complex.h],[AC_DEFINE([HAVE_COMPLEX_H], [1], [complex.h exists])])
@@ -159,7 +169,9 @@ AC_CHECK_MEMBERS([struct stat.st_rdev])
 AC_CHECK_LIB([m],[csin],[need_math="no"],[need_math="yes"])
 
 # Check for library functions.
-AC_CHECK_FUNCS(getrusage times mkstemp strtof snprintf)
+AC_CHECK_FUNCS(getrusage times mkstemp strtof strtold snprintf ftruncate chsize)
+AC_CHECK_FUNCS(chdir strerror getlogin gethostname kill link symlink perror)
+AC_CHECK_FUNCS(sleep time)
 
 # Check libc for getgid, getpid, getuid
 AC_CHECK_LIB([c],[getgid],[AC_DEFINE([HAVE_GETGID],[1],[libc includes getgid])])
@@ -169,9 +181,12 @@ AC_CHECK_LIB([c],[getuid],[AC_DEFINE([HAVE_GETUID],[1],[libc includes getuid])])
 # Check for C99 (and other IEEE) math functions
 # ??? This list seems awful long. Is there a better way to test for these?
 AC_CHECK_LIB([m],[acosf],[AC_DEFINE([HAVE_ACOSF],[1],[libm includes acosf])])
+AC_CHECK_LIB([m],[acoshf],[AC_DEFINE([HAVE_ACOSHF],[1],[libm includes acoshf])])
 AC_CHECK_LIB([m],[asinf],[AC_DEFINE([HAVE_ASINF],[1],[libm includes asinf])])
+AC_CHECK_LIB([m],[asinhf],[AC_DEFINE([HAVE_ASINHF],[1],[libm includes asinhf])])
 AC_CHECK_LIB([m],[atan2f],[AC_DEFINE([HAVE_ATAN2F],[1],[libm includes atan2f])])
 AC_CHECK_LIB([m],[atanf],[AC_DEFINE([HAVE_ATANF],[1],[libm includes atanf])])
+AC_CHECK_LIB([m],[atanhf],[AC_DEFINE([HAVE_ATANHF],[1],[libm includes atanhf])])
 AC_CHECK_LIB([m],[ceilf],[AC_DEFINE([HAVE_CEILF],[1],[libm includes ceilf])])
 AC_CHECK_LIB([m],[copysignf],[AC_DEFINE([HAVE_COPYSIGNF],[1],[libm includes copysignf])])
 AC_CHECK_LIB([m],[cosf],[AC_DEFINE([HAVE_COSF],[1],[libm includes cosf])])
@@ -183,17 +198,21 @@ AC_CHECK_LIB([m],[frexpf],[AC_DEFINE([HAVE_FREXPF],[1],[libm includes frexpf])])
 AC_CHECK_LIB([m],[hypotf],[AC_DEFINE([HAVE_HYPOTF],[1],[libm includes hypotf])])
 AC_CHECK_LIB([m],[logf],[AC_DEFINE([HAVE_LOGF],[1],[libm includes logf])])
 AC_CHECK_LIB([m],[log10f],[AC_DEFINE([HAVE_LOG10F],[1],[libm includes log10f])])
+AC_CHECK_LIB([m],[log10l],[AC_DEFINE([HAVE_LOG10L],[1],[libm includes log10l])])
 AC_CHECK_LIB([m],[nextafter],[AC_DEFINE([HAVE_NEXTAFTER],[1],[libm includes nextafter])])
 AC_CHECK_LIB([m],[nextafterf],[AC_DEFINE([HAVE_NEXTAFTERF],[1],[libm includes nextafterf])])
 AC_CHECK_LIB([m],[powf],[AC_DEFINE([HAVE_POWF],[1],[libm includes powf])])
 AC_CHECK_LIB([m],[round],[AC_DEFINE([HAVE_ROUND],[1],[libm includes round])])
 AC_CHECK_LIB([m],[roundf],[AC_DEFINE([HAVE_ROUNDF],[1],[libm includes roundf])])
 AC_CHECK_LIB([m],[scalbnf],[AC_DEFINE([HAVE_SCALBNF],[1],[libm includes scalbnf])])
+AC_CHECK_LIB([m],[scalbn],[AC_DEFINE([HAVE_SCALBN],[1],[libm includes scalbn])])
 AC_CHECK_LIB([m],[sinf],[AC_DEFINE([HAVE_SINF],[1],[libm includes sinf])])
 AC_CHECK_LIB([m],[sinhf],[AC_DEFINE([HAVE_SINHF],[1],[libm includes sinhf])])
 AC_CHECK_LIB([m],[sqrtf],[AC_DEFINE([HAVE_SQRTF],[1],[libm includes sqrtf])])
 AC_CHECK_LIB([m],[tanf],[AC_DEFINE([HAVE_TANF],[1],[libm includes tanf])])
 AC_CHECK_LIB([m],[tanhf],[AC_DEFINE([HAVE_TANHF],[1],[libm includes tanhf])])
+AC_CHECK_LIB([m],[trunc],[AC_DEFINE([HAVE_TRUNC],[1],[libm includes trunc])])
+AC_CHECK_LIB([m],[truncf],[AC_DEFINE([HAVE_TRUNCF],[1],[libm includes truncf])])
 AC_CHECK_LIB([m],[erf],[AC_DEFINE([HAVE_ERF],[1],[libm includes erf])])
 AC_CHECK_LIB([m],[erfc],[AC_DEFINE([HAVE_ERFC],[1],[libm includes erfc])])
 AC_CHECK_LIB([m],[erfcf],[AC_DEFINE([HAVE_ERFCF],[1],[libm includes erfcf])])
@@ -234,6 +253,14 @@ LIBGFOR_GETTIMEOFDAY
 # have C99 integer types at all.
 LIBGFOR_TARGET_ILP32
 
+# Check out attribute support.
+LIBGFOR_CHECK_ATTRIBUTE_VISIBILITY
+LIBGFOR_CHECK_ATTRIBUTE_DLLEXPORT
+LIBGFOR_CHECK_ATTRIBUTE_ALIAS
+
+# Various other checks on target
+LIBGFOR_CHECK_UNLINK_OPEN_FILE
+
 AC_CACHE_SAVE
 
 if test ${multilib} = yes; then