diff options
Diffstat (limited to 'configure.in')
| -rw-r--r-- | configure.in | 29 |
1 files changed, 27 insertions, 2 deletions
diff --git a/configure.in b/configure.in index de709bede..5bb0dff65 100644 --- a/configure.in +++ b/configure.in @@ -487,8 +487,7 @@ AC_LANG([C]) CFLAGS="$CFLAGS -pipe -ffast-math -fvisibility=hidden -Wall -Wextra -Wno-sign-compare" CPPFLAGS="$CPPFLAGS -I../common" -LDFLAGS="$LDFLAGS -rdynamic" - +LDFLAGS="$LDFLAGS" AC_C_BIGENDIAN( [AC_MSG_ERROR([[bigendian is not supported... stopping]])], @@ -590,6 +589,32 @@ AC_RUN_IFELSE( ] ) +# +# Check if the linker supports/accepts -rdynamic +# Generally only needed by the ELF linker, in order to produce backtraces. +# On non-ELF platforms, some compilers (i.e. gcc < 5 and clang on OSX) are able to ignore it, others will error out. +# +OLD_LDFLAGS="$LDFLAGS" +LDFLAGS="$LDFLAGS -rdynamic" +AC_MSG_CHECKING([whether $CC accepts -rdynamic]) +AC_LINK_IFELSE( + [AC_LANG_SOURCE([ + int main(int argc, char **argv) + { + return 0; + } + ])], + [ + AC_MSG_RESULT([yes]) + ], + [ + AC_MSG_RESULT([no]) + LDFLAGS="$OLD_LDFLAGS" + ], + [ + AC_MSG_RESULT([guessing no]) + ] +) # # LTO Support test |