oasis

commit: 4809f2a72987d2e98e3e17fd723aa69104dc1e2c
parent 16e4b11f358512e8c7c7d2e67d0a0853c18f8966
Author: Michael Forney <mforney@mforney.org>
Date:   Sat, 10 Aug 2019 22:36:57 +0000

libjpeg-turbo: Probe for __builtin_ctzl

Diffstat:
M
pkg/libjpeg-turbo/gen.lua
15
++++++++++++++-
M
pkg/libjpeg-turbo/jconfigint.h
2
++
A
probe/HAVE___BUILTIN_CTZL
4
++++
M
probe/gen.lua
1
+

4 files changed, 21 insertions(+), 1 deletion(-)
diff --git a/pkg/libjpeg-turbo/gen.lua b/pkg/libjpeg-turbo/gen.lua
@@ -1,4 +1,17 @@
-cflags{'-I $dir'}
+cflags{
+	'-I $outdir',
+	'-I $outdir/include',
+}
+
+build('cat', '$outdir/jconfigint.h', {
+	'$builddir/probe/HAVE___BUILTIN_CTZL',
+	'$dir/jconfigint.h',
+})
+
+pkg.deps = {
+	'$dir/headers',
+	'$outdir/jconfigint.h',
+}
 
 lib('libjpeg-turbo.a', [[
 	jcapimin.c jcapistd.c jccoefct.c jccolor.c jcdctmgr.c jchuff.c
diff --git a/pkg/libjpeg-turbo/jconfigint.h b/pkg/libjpeg-turbo/jconfigint.h
@@ -4,7 +4,9 @@
 #define PACKAGE_NAME  "libjpeg-turbo"
 #define VERSION  "2.0.2"
 #define SIZEOF_SIZE_T  8
+#ifdef HAVE___BUILTIN_CTZL
 #define HAVE_BUILTIN_CTZL
+#endif
 /* #undef HAVE_INTRIN_H */
 #if defined(_MSC_VER) && defined(HAVE_INTRIN_H)
 #if (SIZEOF_SIZE_T == 8)
diff --git a/probe/HAVE___BUILTIN_CTZL b/probe/HAVE___BUILTIN_CTZL
@@ -0,0 +1,4 @@
+unsigned long x = -1;
+int main(void) {
+	return __builtin_ctzl(x);
+}
diff --git a/probe/gen.lua b/probe/gen.lua
@@ -6,6 +6,7 @@ probe('HAVE_IMMINTRIN_H')
 probe('HAVE__MM_MOVEMASK_EPI8')
 probe('HAVE__THREAD_LOCAL')
 probe('HAVE___BUILTIN_CLZ')
+probe('HAVE___BUILTIN_CTZL')
 
 local function probesize(var)
 	build('probesize', '$outdir/'..var, {'$dir/'..var, '|', 'scripts/probe-size.sh'}, {var=var})