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| author | Darren Tucker <dtucker@dtucker.net> | 2020-11-06 16:53:24 +1100 |
|---|---|---|
| committer | Darren Tucker <dtucker@dtucker.net> | 2020-11-06 16:53:24 +1100 |
| commit | 586f9bd2f5980e12f8cf0d3c2a761fa63175da52 (patch) | |
| tree | 5db9a1b68f30d52e46ad09411ec66c60cc576aa4 /configure.ac | |
| parent | a019e353df04de1b2ca78d91b39c393256044ad7 (diff) | |
| download | openssh-git-586f9bd2f5980e12f8cf0d3c2a761fa63175da52.tar.gz | |
Remove AC_PROC_CC_C99 obsoleted in autoconf 2.70.
Since we only use it to make sure we can handle variadic macros,
explicitly check only for that. with & ok djm@
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/configure.ac b/configure.ac index d1dc651e..07b080fd 100644 --- a/configure.ac +++ b/configure.ac @@ -20,11 +20,16 @@ AC_LANG([C]) AC_CONFIG_HEADERS([config.h]) AC_PROG_CC([cc gcc]) -AC_PROG_CC_C99 + # XXX relax this after reimplementing logit() etc. -if test "x$ac_cv_prog_cc_c99" = "xno" ; then - AC_MSG_ERROR([*** OpenSSH requires a C99 capable compiler ***]) -fi +AC_MSG_CHECKING([if $CC supports C99-style variadic macros]) +AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ +int f(int a, int b, int c) { return a + b + c; } +#define F(a, ...) f(a, __VA_ARGS__) +]], [[int main(void) { return F(1, 2, -3); }]])], + [ AC_MSG_RESULT([yes]) ], + [ AC_MSG_ERROR([*** OpenSSH requires support for C99-style variadic macros]) ] +) AC_CANONICAL_HOST AC_C_BIGENDIAN |