Use SIGRTMIN from kernel headers
* configure.ac (ASM_SIGRTMIN): Define to SIGRTMIN from <asm/signal.h>.
* signal.c: Use ASM_SIGRTMIN instead of constants provided by libc.
* tests/sigreturn.c: Use ASM_SIGRTMIN instead of hardcoded value.
Use lower RT_* numbers to support pre-3.18 hppa kernels.
* tests/sigreturn.test: Update regexp.
diff --git a/configure.ac b/configure.ac
index 4f2e02b..e73958c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -711,13 +711,22 @@
AC_CHECK_SIZEOF([long long])
AC_CHECK_SIZEOF([off_t],,[#include <sys/types.h>])
-AC_CACHE_CHECK([for SA_RESTORER], [st_cv_sa_restorer],
- [st_cv_sa_restorer="$(echo SA_RESTORER |
+AC_CACHE_CHECK([for SIGRTMIN], [st_cv_SIGRTMIN],
+ [[st_cv_SIGRTMIN="$(echo SIGRTMIN |
+ $CPP $CPPFLAGS -P -imacros asm/signal.h - |
+ grep '^[0-9]')"
+ test -n "$st_cv_SIGRTMIN" || st_cv_SIGRTMIN=no]])
+if test "x$st_cv_SIGRTMIN" != xno; then
+ AC_DEFINE_UNQUOTED([ASM_SIGRTMIN], [$st_cv_SIGRTMIN],
+ [SIGRTMIN defined in <asm/signal.h>])
+fi
+AC_CACHE_CHECK([for SA_RESTORER], [st_cv_SA_RESTORER],
+ [st_cv_SA_RESTORER="$(echo SA_RESTORER |
$CPP $CPPFLAGS -P -imacros asm/signal.h - |
grep ^0x)"
- test -n "$st_cv_sa_restorer" || st_cv_sa_restorer=no])
-if test "x$st_cv_sa_restorer" != xno; then
- AC_DEFINE_UNQUOTED([ASM_SA_RESTORER], [$st_cv_sa_restorer],
+ test -n "$st_cv_SA_RESTORER" || st_cv_SA_RESTORER=no])
+if test "x$st_cv_SA_RESTORER" != xno; then
+ AC_DEFINE_UNQUOTED([ASM_SA_RESTORER], [$st_cv_SA_RESTORER],
[SA_RESTORER defined in <asm/signal.h>])
fi