diff options
| author | Luboš Luňák <l.lunak@collabora.com> | 2022-05-14 15:45:45 +0200 |
|---|---|---|
| committer | Luboš Luňák <l.lunak@collabora.com> | 2022-05-16 09:05:13 +0200 |
| commit | 392f87b099509d0c0f5e553ae1c5970dca9dc235 (patch) | |
| tree | 2577dcad211da4b26eca1265078daf7a74777386 /configure.ac | |
| parent | 86039563de87149a01ffb980b5ec99074b98fd5e (diff) | |
enable libc++ debug mode again if available
Now includes a configure check for the std::to_string() crash.
Change-Id: I45c3b804b7a1ff5f6520f7bdf772497f72ddee47
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/134338
Tested-by: Jenkins
Reviewed-by: Luboš Luňák <l.lunak@collabora.com>
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 2c65a1200f69..2f0f5a574ed6 100644 --- a/configure.ac +++ b/configure.ac @@ -7419,6 +7419,34 @@ AC_LANG_POP([C++]) AC_SUBST([HAVE_LIBSTDCPP]) AC_SUBST([HAVE_LIBCPP]) +HAVE_LIBCPP_DEBUG= +if test -n "$HAVE_LIBCPP" -a -n "$ENABLE_DBGUTIL"; then + # Libc++ supports debug mode only if built for it, Mac libc++ isn't, + # and there would be undefined references to debug functions. + # Moreover std::to_string() has a bug (https://reviews.llvm.org/D125184). + AC_MSG_CHECKING([if libc++ has a usable debug mode]) + AC_LANG_PUSH([C++]) + AC_RUN_IFELSE([AC_LANG_SOURCE([[ +#define _LIBCPP_DEBUG 1 +#include <string> +#include <vector> +int foo(const std::vector<int>& v) { return *v.begin(); } +int main() +{ + std::vector<int> v{ 1, 2 }; + std::string s = "xxxxxxxxxxxxxxxxxxxxxxxxx" + std::to_string(10); + return (foo(v) + s.size()) != 0 ? 0 : 1; +} +]])], + [AC_MSG_RESULT(yes) + HAVE_LIBCPP_DEBUG=1 + ], + [AC_MSG_RESULT(no)] + ) + AC_LANG_POP([C++]) +fi +AC_SUBST([HAVE_LIBCPP_DEBUG]) + dnl =================================================================== dnl Check for gperf dnl =================================================================== |