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authorJoseph Myers <joseph@codesourcery.com>2015-10-27 10:46:15 +0000
committerJoseph Myers <joseph@codesourcery.com>2015-10-27 10:46:15 +0000
commite4f5eae8f004f236db11325df2adf338766c0543 (patch)
tree5de6d64665e7beeb7b755ed170521ce18ec1cf09 /Makeconfig
parentf5659917f9cbdbd162870b858e527506687bfb1f (diff)
downloadglibc-e4f5eae8f004f236db11325df2adf338766c0543.tar.gz
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 'Makeconfig')
-rw-r--r--Makeconfig4
1 files changed, 1 insertions, 3 deletions
diff --git a/Makeconfig b/Makeconfig
index f3668c616a..c0f5e64ef5 100644
--- a/Makeconfig
+++ b/Makeconfig
@@ -345,9 +345,7 @@ endif
endif
# Flags to pass the C compiler when assembling preprocessed assembly code
-# (`.S' files). On some systems the assembler doesn't understand the `#' line
-# directives the preprocessor produces. If you have troubling compiling
-# assembly code, try using -P here to suppress these directives.
+# (`.S' files).
ifndef asm-CPPFLAGS
asm-CPPFLAGS =
endif