drm/bo: fix stupid lock imbalance

[android-x86/external-libdrm.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 987b011..a6fbff7 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -32,12 +32,92 @@ AC_PROG_CC
 AC_HEADER_STDC
 AC_SYS_LARGEFILE
 
+PKG_CHECK_MODULES(PTHREADSTUBS, pthread-stubs)
+AC_SUBST(PTHREADSTUBS_CFLAGS)
+AC_SUBST(PTHREADSTUBS_LIBS)
+
 pkgconfigdir=${libdir}/pkgconfig
 AC_SUBST(pkgconfigdir)
+AC_ARG_ENABLE(udev,    AS_HELP_STRING([--enable-udev],
+                               [Enable support for using udev instead of mknod (default: disabled)]),
+                               [UDEV=$enableval], [UDEV=no])
+
+
+dnl ===========================================================================
+dnl check compiler flags
+AC_DEFUN([LIBDRM_CC_TRY_FLAG], [
+  AC_MSG_CHECKING([whether $CC supports $1])
+
+  libdrm_save_CFLAGS="$CFLAGS"
+  CFLAGS="$CFLAGS $1"
+
+  AC_COMPILE_IFELSE([ ], [libdrm_cc_flag=yes], [libdrm_cc_flag=no])
+  CFLAGS="$libdrm_save_CFLAGS"
+
+  if test "x$libdrm_cc_flag" = "xyes"; then
+    ifelse([$2], , :, [$2])
+  else
+    ifelse([$3], , :, [$3])
+  fi
+  AC_MSG_RESULT([$libdrm_cc_flag])
+])
+
+dnl Use lots of warning flags with with gcc and compatible compilers
+
+dnl Note: if you change the following variable, the cache is automatically
+dnl skipped and all flags rechecked.  So there's no need to do anything
+dnl else.  If for any reason you need to force a recheck, just change
+dnl MAYBE_WARN in an ignorable way (like adding whitespace)
+
+MAYBE_WARN="-Wall -Wextra \
+-Wsign-compare -Werror-implicit-function-declaration \
+-Wpointer-arith -Wwrite-strings -Wstrict-prototypes \
+-Wmissing-prototypes -Wmissing-declarations -Wnested-externs \
+-Wpacked -Wswitch-enum -Wmissing-format-attribute \
+-Wstrict-aliasing=2 -Winit-self -Wunsafe-loop-optimizations \
+-Wdeclaration-after-statement -Wold-style-definition \
+-Wno-missing-field-initializers -Wno-unused-parameter \
+-Wno-attributes -Wno-long-long -Winline"
+
+# invalidate cached value if MAYBE_WARN has changed
+if test "x$libdrm_cv_warn_maybe" != "x$MAYBE_WARN"; then
+       unset libdrm_cv_warn_cflags
+fi
+AC_CACHE_CHECK([for supported warning flags], libdrm_cv_warn_cflags, [
+       echo
+       WARN_CFLAGS=""
+
+       # Some warning options are not supported by all versions of
+       # gcc, so test all desired options against the current
+       # compiler.
+       #
+       # Note that there are some order dependencies
+       # here. Specifically, an option that disables a warning will
+       # have no net effect if a later option then enables that
+       # warnings, (perhaps implicitly). So we put some grouped
+       # options (-Wall and -Wextra) up front and the -Wno options
+       # last.
+
+       for W in $MAYBE_WARN; do
+               LIBDRM_CC_TRY_FLAG([$W], [WARN_CFLAGS="$WARN_CFLAGS $W"])
+       done
+
+       libdrm_cv_warn_cflags=$WARN_CFLAGS
+       libdrm_cv_warn_maybe=$MAYBE_WARN
+
+       AC_MSG_CHECKING([which warning flags were supported])])
+WARN_CFLAGS="$libdrm_cv_warn_cflags"
+
+if test "x$UDEV" = xyes; then
+       AC_DEFINE(UDEV, 1, [Have UDEV support])
+fi
 
+AC_SUBST(WARN_CFLAGS)
 AC_OUTPUT([
        Makefile
        libdrm/Makefile
+       libdrm/intel/Makefile
+       libdrm/radeon/Makefile
        shared-core/Makefile
        tests/Makefile
        libdrm.pc])