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| author | Michael R Sweet <michael.r.sweet@gmail.com> | 2006-10-31 21:28:11 +0000 |
|---|---|---|
| committer | Michael R Sweet <michael.r.sweet@gmail.com> | 2006-10-31 21:28:11 +0000 |
| commit | 7a9e9468e6857434755bc2d14ed43616bd628a05 (patch) | |
| tree | da12c55536dfdea61ae204171727d3abdf901147 | |
| parent | 4e0cea8f1024e10a5a6e0ebe114625d8c2fa4d70 (diff) | |
Add -fno-strict-aliasing to compiler options since GCC doesn't understand
that char * and unsigned char * are safe to interchange (STR #1484)
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.1@5538 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
| -rw-r--r-- | configure.in | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/configure.in b/configure.in index 9ac0075aa..4fd326e6b 100644 --- a/configure.in +++ b/configure.in @@ -881,6 +881,16 @@ if test -n "$GCC"; then AC_MSG_RESULT(no)) CFLAGS="$OLDCFLAGS" + # See if GCC supports -fno-strict-aliasing... + AC_MSG_CHECKING(if GCC supports -fno-strict-aliasing) + OLDCFLAGS="$CFLAGS" + CFLAGS="$CFLAGS -fno-strict-aliasing" + AC_TRY_COMPILE(,, + OPTIM="$OPTIM -fno-strict-aliasing" + AC_MSG_RESULT(yes), + AC_MSG_RESULT(no)) + CFLAGS="$OLDCFLAGS" + # See if we are running Solaris; if so, try the -fpermissive option... # This option is required on some versions of Solaris to work around # bugs in the X headers up through Solaris 7. |