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| author | law <law@138bc75d-0d04-0410-961f-82ee72b054a4> | 1998-05-10 01:27:49 +0000 |
|---|---|---|
| committer | law <law@138bc75d-0d04-0410-961f-82ee72b054a4> | 1998-05-10 01:27:49 +0000 |
| commit | 8564ad21d5bbb3e41ddbb083a44e3b67bc4b1439 (patch) | |
| tree | f64f178c3253cacbedc18b0625c5db1b79191ab7 /gcc/aclocal.m4 | |
| parent | f1a4450e505a14defffc88087875a65eefff0c78 (diff) | |
| download | gcc-8564ad21d5bbb3e41ddbb083a44e3b67bc4b1439.tar.gz | |
* acconfig.h (HAVE_VOLATILE): Insert stub for autoconf.
* alocal.m4 (GCC_C_VOLATILE): New autoconf test.
* configure.in: Use GCC_C_VOLATILE.
* system.h (volatile): Define as empty if no volatile support is
available.
* genemit.c (output_add_clobbers): Removed unused variable 'i' from
generated fucntion.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@19653 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/aclocal.m4')
| -rw-r--r-- | gcc/aclocal.m4 | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/gcc/aclocal.m4 b/gcc/aclocal.m4 index 007fb5eb5f6..7149a2ab98a 100644 --- a/gcc/aclocal.m4 +++ b/gcc/aclocal.m4 @@ -143,6 +143,16 @@ fi AC_SUBST(LN)dnl ]) +dnl See whether the stage1 host compiler accepts the volatile keyword. +AC_DEFUN(GCC_C_VOLATILE, +[AC_CACHE_CHECK([for volatile], gcc_cv_c_volatile, +[AC_TRY_COMPILE(, [volatile int foo;], + gcc_cv_c_volatile=yes, gcc_cv_c_volatile=no)]) +if test $gcc_cv_c_volatile = yes ; then + AC_DEFINE(HAVE_VOLATILE) +fi +]) + AC_DEFUN(EGCS_PROG_INSTALL, [AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl # Find a good install program. We prefer a C program (faster), |