path: root/include/dlfcn.h
diff options
authorRich Felker <>2012-09-06 22:44:55 -0400
committerRich Felker <>2012-09-06 22:44:55 -0400
commit400c5e5c8307a2ebe44ef1f203f5a15669f20347 (patch)
tree087a48dc8251fa05f6866af8ebf96b69450b15ab /include/dlfcn.h
parentbac03cdde1137c16b4c194e137310e2748661dcc (diff)
use restrict everywhere it's required by c99 and/or posix 2008
to deal with the fact that the public headers may be used with pre-c99 compilers, __restrict is used in place of restrict, and defined appropriately for any supported compiler. we also avoid the form [restrict] since older versions of gcc rejected it due to a bug in the original c99 standard, and instead use the form *restrict.
Diffstat (limited to 'include/dlfcn.h')
1 files changed, 7 insertions, 1 deletions
diff --git a/include/dlfcn.h b/include/dlfcn.h
index e98c8ca6..2e7d0283 100644
--- a/include/dlfcn.h
+++ b/include/dlfcn.h
@@ -5,6 +5,12 @@
extern "C" {
+#if __STDC_VERSION__ >= 199901L
+#define __restrict restrict
+#elif !defined(__GNUC__)
+#define __restrict
#define RTLD_LAZY 1
#define RTLD_NOW 2
#define RTLD_GLOBAL 256
@@ -16,7 +22,7 @@ extern "C" {
int dlclose(void *);
char *dlerror(void);
void *dlopen(const char *, int);
-void *dlsym(void *, const char *);
+void *dlsym(void *__restrict, const char *__restrict);
#ifdef _GNU_SOURCE
typedef struct {