Subject: [PATCH] Work around bool type redefinition by altivec

On powerpc64le, the SDL header may include altivec.h and this
(combined with -std=c99) will cause a compile failure due to bool
being redefined as a vector type.

Adjust the compiler flags to add -std=gnu99 (which is compatible with
altivec) when using gcc. The generic flag '-std=c99' is left in place for other
compilers (in the gcc case it is overridden by the (later) gnu flag).

Signed-off-by: Sam Bobroff <sam.bobroff@au1.ibm.com>
---
 waftools/detections/compiler.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/waftools/detections/compiler.py b/waftools/detections/compiler.py
index 5bbba87..50836a2 100644
--- a/waftools/detections/compiler.py
+++ b/waftools/detections/compiler.py
@@ -43,7 +43,8 @@ def __add_gcc_flags__(ctx):
                        "-Wno-switch", "-Wparentheses", "-Wpointer-arith",
                        "-Wno-pointer-sign",
                        # GCC bug 66425
-                       "-Wno-unused-result"]
+                       "-Wno-unused-result",
+                       "-std=gnu99"]
 
 def __add_clang_flags__(ctx):
     ctx.env.CFLAGS += ["-Wno-logical-op-parentheses", "-fcolor-diagnostics",
-- 
2.10.0.297.gf6727b0