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| author | Siarhei Siamashka <siarhei.siamashka@gmail.com> | 2012-12-16 06:17:20 +0200 |
|---|---|---|
| committer | Siarhei Siamashka <siarhei.siamashka@gmail.com> | 2012-12-20 04:01:23 +0200 |
| commit | 5a7cafaf54225b0adaf17467b4dd42b9ece9a93d (patch) | |
| tree | e8d30819542204fd128c06e95e3a88240ca5aa4f | |
| parent | 2cfe188ebd7d1af0d19b7612059202e9f96eee38 (diff) | |
New option to build pixman as C++ code (--enable-enforced-cplusplus)
First of all, there is no intention to start relying on any C++
features for the normal production builds of pixman which are
shipped to end users. The C programming language is just fine.
However building pixman as C++ code may be sometimes useful for
testing and development purposes. C++ is particularly anal about
type safety and also allows defining classes for custom data types
with operators overloading. It may be handy for the special debugging
builds where we can enforce strict rules about what and how can be
done with pixman_fixed_t and pixman_fixed_48_16_t, forbid uncontrolled
casts between integer and fixed point types, implement custom checks
at runtime for detecting overflows or any other potential problems.
| -rw-r--r-- | configure.ac | 17 | ||||
| -rw-r--r-- | pixman/Makefile.am | 3 |
2 files changed, 20 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 529ed0a..fe62bef 100644 --- a/configure.ac +++ b/configure.ac @@ -754,6 +754,23 @@ fi AC_SUBST(TESTPROGS_EXTRA_LDFLAGS) dnl ============================================== +dnl Force compilation of pixman library in C++ mode (for testing/debugging) + +AC_ARG_ENABLE(enforced-cplusplus, + [AC_HELP_STRING([--enable-enforced-cplusplus], + [unsupported C++ test build [default=no]])], + [enable_enforced_cplusplus=$enableval], [enable_enforced_cplusplus=no]) + +PIXMAN_EXTRA_CPPFLAGS= +PIXMAN_EXTRA_CCASFLAGS= +if test "x$enable_enforced_cplusplus" = "xyes" ; then + PIXMAN_EXTRA_CPPFLAGS="$PIXMAN_EXTRA_CPPFLAGS -xc++" + PIXMAN_EXTRA_CCASFLAGS="$PIXMAN_EXTRA_CCASFLAGS -xnone" +fi +AC_SUBST(PIXMAN_EXTRA_CPPFLAGS) +AC_SUBST(PIXMAN_EXTRA_CCASFLAGS) + +dnl ============================================== dnl Timers AC_ARG_ENABLE(timers, diff --git a/pixman/Makefile.am b/pixman/Makefile.am index cbed085..6b654fe 100644 --- a/pixman/Makefile.am +++ b/pixman/Makefile.am @@ -1,5 +1,8 @@ include $(top_srcdir)/pixman/Makefile.sources +AM_CPPFLAGS = $(PIXMAN_EXTRA_CPPFLAGS) +AM_CCASFLAGS = $(PIXMAN_EXTRA_CCASFLAGS) + lib_LTLIBRARIES = libpixman-1.la libpixman_1_la_LDFLAGS = -version-info $(LT_VERSION_INFO) -no-undefined @PTHREAD_LDFLAGS@ |