diff options
Diffstat (limited to 'lib/autoconf/c.m4')
| -rw-r--r-- | lib/autoconf/c.m4 | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/lib/autoconf/c.m4 b/lib/autoconf/c.m4 index d9858669..0027f98b 100644 --- a/lib/autoconf/c.m4 +++ b/lib/autoconf/c.m4 @@ -687,8 +687,8 @@ AU_DEFUN([ac_cv_prog_gxx], # FCC Fujitsu C++ compiler # KCC KAI C++ compiler # RCC Rational C++ -# xlC_r AIX C Set++ (with support for reentrant code) -# xlC AIX C Set++ +# xlC_r IBM XL C++ for AIX (with support for reentrant code) +# xlC IBM XL C++ for AIX AN_MAKEVAR([CXX], [AC_PROG_CXX]) AN_PROGRAM([CC], [AC_PROG_CXX]) AN_PROGRAM([c++], [AC_PROG_CXX]) @@ -1451,12 +1451,12 @@ dnl Try dnl GCC -std=gnu11 (unused restrictive mode: -std=c11) dnl with extended modes being tried first. dnl -dnl Do not try -qlanglvl=extc1x, because IBM XL C V12.1 (the latest version as -dnl of September 2012) does not pass the C11 test. For now, try extc1x when +dnl For IBM XL C for AIX V16.1 or later, '-std=gnu11' should work if +dnl the user configured with CC='xlclang'. Otherwise, do not try +dnl -qlanglvl=extc1x as xlc with IBM XL C V16.1 (the latest version as +dnl of August 2020) does not pass the C11 test. Instead, try extc1x when dnl compiling the C99 test instead, since it enables _Static_assert and -dnl _Noreturn, which is a win. If -qlanglvl=extc11 or -qlanglvl=extc1x passes -dnl the C11 test in some future version of IBM XL C, we'll add it here, -dnl preferably extc11. +dnl _Noreturn, which is a win. [[-std=gnu11]], [$1], [$2])[]dnl ])# _AC_PROG_CC_C11 |