[Nasm-bugs] [Bug 3392591] New: PA_CHECK_BAD_STDC_INLINE doesn't detect old gcc properly

noreply-nasm at gorcunov.org noreply-nasm at gorcunov.org
Fri Aug 9 02:44:59 PDT 2019


https://bugzilla.nasm.us/show_bug.cgi?id=3392591

            Bug ID: 3392591
           Summary: PA_CHECK_BAD_STDC_INLINE doesn't detect old gcc
                    properly
           Product: NASM
           Version: unspecified
          Hardware: All
                OS: All
            Status: OPEN
          Severity: normal
          Priority: Medium
         Component: Assembler
          Assignee: nobody at nasm.us
          Reporter: sezeroz at gmail.com
                CC: chang.seok.bae at intel.com, gorcunov at gmail.com,
                    hpa at zytor.com, nasm-bugs at nasm.us
     Obtained from: Built from git using configure

PA_CHECK_BAD_STDC_INLINE doesn't detect old gcc properly. E.g.:
checking if gcc34 -std=gnu99 supports C99 external inlines... yes

which gcc34 clearly does not, and that results in link a failure
due to multiple definitions.

Maybe something like the following is needed? (Works for me (TM)
with gcc3.4, gcc4.9, clang3.4):

diff --git a/autoconf/m4/pa_check_bad_stdc_inline.m4
b/autoconf/m4/pa_check_bad_stdc_inline.m4
index 267a8ce..26c4120 100644
--- a/autoconf/m4/pa_check_bad_stdc_inline.m4
+++ b/autoconf/m4/pa_check_bad_stdc_inline.m4
@@ -13,6 +13,9 @@ AC_INCLUDES_DEFAULT
 #ifdef __GNUC_GNU_INLINE__
 # error "Using gnu inline standard"
 #endif
+#if defined(__GNUC__) && !defined(__GNUC_STDC_INLINE__)
+# error "Using gnu inline standard"
+#endif

 inline int foo(int x)
 {

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