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| author | Joseph Myers <joseph@codesourcery.com> | 2015-10-27 10:46:15 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2015-10-27 10:46:15 +0000 |
| commit | e4f5eae8f004f236db11325df2adf338766c0543 (patch) | |
| tree | 5de6d64665e7beeb7b755ed170521ce18ec1cf09 /configure.ac | |
| parent | f5659917f9cbdbd162870b858e527506687bfb1f (diff) | |
| download | glibc-e4f5eae8f004f236db11325df2adf338766c0543.tar.gz glibc-e4f5eae8f004f236db11325df2adf338766c0543.tar.xz glibc-e4f5eae8f004f236db11325df2adf338766c0543.zip | |
Remove configure test for needing -P for .S files.
There is a configure test for "whether we need to use -P to assemble
.S files".
I think this test is long obsolete. I don't have a specific reference
to a binutils change or version that obsoleted this test, but: (a) we
only support GNU binutils; (b) it looks like every architecture
supported by glibc has '#' as a line comment character in its gas
port; (c) in any case, if the (compiler, assembler) combination in use
cannot compile a .S file without special options, that would clearly
be a substantially broken combination, which I don't think we need to
allow for at all.
The test in question was added by:
Thu Jan 27 16:46:03 1994 Roland McGrath (roland@churchy.gnu.ai.mit.edu)
* configure.in (asm-CPPFLAGS): Add new check to see if assembling
a .S file loses without -P. If so, set asm-CPPFLAGS=-P in config.make.
This patch removes the test and the reference to this issue in the
comment on the default empty definition of asm-CPPFLAGS. (Various
other settings of asm-CPPFLAGS remain in sysdeps Makefile fragments.)
Tested for x86_64 and x86 (testsuite, and that installed shared
libraries are unchanged by the patch).
* configure.ac (libc_cv_need_minus_P): Remove configure test.
* configure: Regenerated.
* Makeconfig (asm-CPPFLAGS): Remove reference to -P in comment.
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 17 |
1 files changed, 0 insertions, 17 deletions
diff --git a/configure.ac b/configure.ac index 6947555be4..4879c48db7 100644 --- a/configure.ac +++ b/configure.ac @@ -1080,23 +1080,6 @@ AC_CHECK_PROG_VER(BISON, bison, --version, [2.7*|[3-9].*|[1-9][0-9]*], BISON=no) -AC_CACHE_CHECK(whether we need to use -P to assemble .S files, - libc_cv_need_minus_P, [dnl -cat > conftest.S <<EOF -#include "confdefs.h" -/* Nothing whatsoever. */ -EOF -if AC_TRY_COMMAND(${CC-cc} $CPPFLAGS $ASFLAGS -c conftest.S 1>&AS_MESSAGE_LOG_FD); then - libc_cv_need_minus_P=no -else - libc_cv_need_minus_P=yes -fi -rm -f conftest*]) -if test $libc_cv_need_minus_P = yes; then - config_vars="$config_vars -asm-CPPFLAGS = -P # The assembler can't grok cpp's # line directives." -fi - AC_CACHE_CHECK(for .set assembler directive, libc_cv_asm_set_directive, [dnl cat > conftest.s <<EOF .text |