Mercurial > jwe > octave
diff configure.ac @ 30536:492a37a18b81 stable
Guard usage of non-standard pragmas.
* configure.ac (HAVE_PRAGMA_GCC_VISIBILITY): Add new test for
"#pragma GCC visibility".
(HAVE_PRAGMA_GCC_DIAGNOSTIC): Fix typo in test.
* libinterp/template-inst/Array-tc.cc: Use HAVE_PRAGMA_GCC_VISIBILITY.
* liboctave/util/blaswrap.c: Use HAVE_PRAGMA_GCC_DIAGNOSTIC.
* liboctave/wrappers/stat-wrappers.c, liboctave/wrappers/wait-wrappers.c: Fix
indentation.
| author | Markus Mützel <markus.muetzel@gmx.de> |
|---|---|
| date | Thu, 23 Dec 2021 11:55:09 +0100 |
| parents | 9b41aba64c12 |
| children | 5ff87e646505 c94757297640 |
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--- a/configure.ac Thu Dec 23 15:24:55 2021 +0100 +++ b/configure.ac Thu Dec 23 11:55:09 2021 +0100 @@ -2842,11 +2842,11 @@ ### Check for GCC-specific pragmas to control warnings. AC_LANG_PUSH(C++) -AC_CACHE_CHECK([for @%:@pragma GCC diagnostic push/pop/ignore], +AC_CACHE_CHECK([for @%:@pragma GCC diagnostic push/pop/ignored], [octave_cv_gcc_has_pragma_GCC_diagnostic], [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[ #pragma GCC diagnostic push -#pragma GCC diagnostic ignore "-Wold-style-cast" +#pragma GCC diagnostic ignored "-Wold-style-cast" int three = (int) 3.1415926; #pragma GCC diagnostic pop ]])], @@ -2857,14 +2857,30 @@ if test $octave_cv_gcc_has_pragma_GCC_diagnostic = yes; then AC_DEFINE(HAVE_PRAGMA_GCC_DIAGNOSTIC, 1, - [Define to 1 if GCC supports @%:@pragma GCC diagnostic ...]) + [Define to 1 if compiler supports @%:@pragma GCC diagnostic ...]) +fi + +AC_CACHE_CHECK([for @%:@pragma GCC visibility push/pop], + [octave_cv_gcc_has_pragma_GCC_visiblity], + [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[ +#pragma GCC visibility push(default) + int three = 3; +#pragma GCC visiblity pop(default) + ]])], + [octave_cv_gcc_has_pragma_GCC_visiblity=yes], + [octave_cv_gcc_has_pragma_GCC_visiblity=no])], + ]) + +if test $octave_cv_gcc_has_pragma_GCC_visiblity = yes; then + AC_DEFINE(HAVE_PRAGMA_GCC_VISIBILITY, 1, + [Define to 1 if compiler supports @%:@pragma GCC visiblity ...]) fi ## Check for one unusual warning used in pragmas that is not always available if test $octave_cv_gcc_has_pragma_GCC_diagnostic = yes; then OCTAVE_CC_FLAG([-Wimplicit-fallthrough], [AC_DEFINE(HAVE_WARN_IMPLICIT_FALLTHROUGH, 1, - [Define to 1 if GCC supports -Wimplicit-fallthrough warning])]) + [Define to 1 if compiler supports -Wimplicit-fallthrough warning])]) fi ### These are recommended by the gnulib bootstrap script: