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author | Reid Spencer <rspencer@reidspencer.com> | 2004-09-20 04:09:56 +0000 |
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committer | Reid Spencer <rspencer@reidspencer.com> | 2004-09-20 04:09:56 +0000 |
commit | 777ce17d357383bcd03847e6442d9f818b8dec2b (patch) | |
tree | b250260808062bd08c80033ca7be1584394ead1a /configure | |
parent | a42b525ea81030ba9a547c4867deb76eb96c98c0 (diff) | |
download | external_llvm-777ce17d357383bcd03847e6442d9f818b8dec2b.zip external_llvm-777ce17d357383bcd03847e6442d9f818b8dec2b.tar.gz external_llvm-777ce17d357383bcd03847e6442d9f818b8dec2b.tar.bz2 |
Fix problems with AC_FUNC_MMAP_FILE and AC_LINK_USE_R that caused problems
with correctly recognizing mmap of files and the linker's support of -r.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16427 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'configure')
-rwxr-xr-x | configure | 44 |
1 files changed, 34 insertions, 10 deletions
@@ -23221,25 +23221,37 @@ ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $ ac_compiler_gnu=$ac_cv_c_compiler_gnu if test "$cross_compiling" = yes; then - ac_cv_func_mmap_file=no + { { echo "$as_me:$LINENO: error: cannot run test program while cross compiling +See \`config.log' for more details." >&5 +echo "$as_me: error: cannot run test program while cross compiling +See \`config.log' for more details." >&2;} + { (exit 1); exit 1; }; } else cat >conftest.$ac_ext <<_ACEOF -#ifdef HAVE_SYS_TYPES_H -#include <sys/types.h> -#endif + /* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ -#ifdef HAVE_SYS_MMAN_H +#include <sys/types.h> #include <sys/mman.h> -#endif - -#ifdef HAVE_FCNTL_H #include <fcntl.h> -#endif + +int +main () +{ int fd; int main () { - fd = creat ("foo",0777); fd = (int) mmap (0, 1, PROT_READ, MAP_SHARED, fd, 0); unlink ("foo"); return (fd != (int) MAP_FAILED);} + fd = creat ("foo",0777); + fd = (int) mmap (0, 1, PROT_READ, MAP_SHARED, fd, 0); + unlink ("foo"); + return (fd != (int) MAP_FAILED);} + ; + return 0; +} _ACEOF rm -f conftest$ac_exeext if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 @@ -23654,7 +23666,19 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu oldcflags="$CFLAGS" CFLAGS="$CFLAGS -Wl,-R." cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ + +int +main () +{ int main() { return 0; } + ; + return 0; +} _ACEOF rm -f conftest.$ac_objext conftest$ac_exeext if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 |