1 files changed, 249 insertions, 0 deletions
diff --git a/pam_ssh_agent-configure-c99.patch b/pam_ssh_agent-configure-c99.patch
new file mode 100644
index 0000000..bc40434
--- /dev/null
+++ b/pam_ssh_agent-configure-c99.patch
@@ -0,0 +1,249 @@
+configure.ac: Improve C99 compatibility
+
+Future compilers will not support implicit declarations and implicit
+ints by default.  This means that configure probes which rely on them
+will fail unconditionally, without actually testing anything.
+
+The changes mostly mirror what has been implemented in the openssh
+repository, but had to be adapted somewhat because of drift between
+the two versions of configure.ac.
+
+Sam James has submitted similar fixes upstream:
+
+  <https://github.com/jbeverly/pam_ssh_agent_auth/pull/41>
+
+diff --git a/configure.ac b/configure.ac
+index 6496679..d927b62 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -500,10 +500,10 @@ int main(void) { exit(0); }
+ 	AC_DEFINE(HAVE_BUNDLE, 1, [Define if your system uses bundles instead of ELF shared objects])
+ 	AC_MSG_CHECKING(if we have working getaddrinfo)
+ 	AC_TRY_RUN([#include <mach-o/dyld.h>
+-main() { if (NSVersionOfRunTimeLibrary("System") >= (60 << 16))
+-		exit(0);
++int main(void) { if (NSVersionOfRunTimeLibrary("System") >= (60 << 16))
++		return 0;
+ 	else
+-		exit(1);
++		return 1;
+ }], [AC_MSG_RESULT(working)],
+ 	[AC_MSG_RESULT(buggy)
+ 	AC_DEFINE(BROKEN_GETADDRINFO, 1, [getaddrinfo is broken (if present)])],
+@@ -917,8 +917,8 @@ AC_SUBST(LDFLAGS_SHARED)
+ AC_MSG_CHECKING(compiler and flags for sanity)
+ AC_RUN_IFELSE(
+ 	[AC_LANG_SOURCE([
+-#include <stdio.h>
+-int main(){exit(0);}
++#include <stdlib.h>
++int main(void){exit(0);}
+ 	])],
+ 	[	AC_MSG_RESULT(yes) ],
+ 	[
+@@ -951,9 +951,9 @@ int main(int argc, char **argv) {
+     strncpy(buf,"/etc", 32);
+     s = dirname(buf);
+     if (!s || strncmp(s, "/", 32) != 0) {
+-	exit(1);
++	return 1;
+     } else {
+-	exit(0);
++	return 0;
+     }
+ }
+ 				]])],
+@@ -1102,7 +1102,7 @@ AC_RUN_IFELSE(
+ 	[AC_LANG_SOURCE([[
+ #include <sys/types.h>
+ #include <dirent.h>
+-int main(void){struct dirent d;exit(sizeof(d.d_name)<=sizeof(char));}
++int main(void){struct dirent d;return sizeof(d.d_name)<=sizeof(char);}
+ 	]])],
+ 	[AC_MSG_RESULT(yes)],
+ 	[
+@@ -1327,8 +1327,10 @@ AC_CHECK_FUNCS(setresuid, [
+ 	AC_MSG_CHECKING(if setresuid seems to work)
+ 	AC_RUN_IFELSE(
+ 		[AC_LANG_SOURCE([[
++#define _GNU_SOURCE
+ #include <stdlib.h>
+ #include <errno.h>
++#include <unistd.h>
+ int main(){errno=0; setresuid(0,0,0); if (errno==ENOSYS) exit(1); else exit(0);}
+ 		]])],
+ 		[AC_MSG_RESULT(yes)],
+@@ -1344,8 +1346,10 @@ AC_CHECK_FUNCS(setresgid, [
+ 	AC_MSG_CHECKING(if setresgid seems to work)
+ 	AC_RUN_IFELSE(
+ 		[AC_LANG_SOURCE([[
++#define _GNU_SOURCE
+ #include <stdlib.h>
+ #include <errno.h>
++#include <unistd.h>
+ int main(){errno=0; setresgid(0,0,0); if (errno==ENOSYS) exit(1); else exit(0);}
+ 		]])],
+ 		[AC_MSG_RESULT(yes)],
+@@ -1384,7 +1388,7 @@ if test "x$ac_cv_func_snprintf" = "xyes" ; then
+ 	AC_RUN_IFELSE(
+ 		[AC_LANG_SOURCE([[
+ #include <stdio.h>
+-int main(void){char b[5];snprintf(b,5,"123456789");exit(b[4]!='\0');}
++int main(void){char b[5];snprintf(b,5,"123456789");return b[4]!='\0';}
+ 		]])],
+ 		[AC_MSG_RESULT(yes)],
+ 		[
+@@ -1418,7 +1422,7 @@ int x_snprintf(char *str,size_t count,const char *fmt,...)
+ int main(void)
+ {
+ 	char x[1];
+-	exit(x_snprintf(x, 1, "%s %d", "hello", 12345) == 11 ? 0 : 1);
++	return x_snprintf(x, 1, "%s %d", "hello", 12345) == 11 ? 0 : 1;
+ } ]])],
+ 		[AC_MSG_RESULT(yes)],
+ 		[
+@@ -1467,7 +1471,8 @@ AC_MSG_CHECKING([for (overly) strict mkstemp])
+ AC_RUN_IFELSE(
+ 	[AC_LANG_SOURCE([[
+ #include <stdlib.h>
+-main() { char template[]="conftest.mkstemp-test";
++#include <unistd.h>
++int main(void) { char template[]="conftest.mkstemp-test";
+ if (mkstemp(template) == -1)
+ 	exit(1);
+ unlink(template); exit(0);
+@@ -1492,10 +1497,14 @@ if test ! -z "$check_for_openpty_ctty_bug"; then
+ 	AC_MSG_CHECKING(if openpty correctly handles controlling tty)
+ 	AC_RUN_IFELSE(
+ 		[AC_LANG_SOURCE([[
++#include <stdlib.h>
+ #include <stdio.h>
+ #include <sys/fcntl.h>
+ #include <sys/types.h>
+ #include <sys/wait.h>
++#ifdef HAVE_PTY_H
++#include <pty.h>
++#endif
+ 
+ int
+ main()
+@@ -1543,6 +1552,7 @@ if test "x$ac_cv_func_getaddrinfo" = "xyes" && \
+ 	AC_RUN_IFELSE(
+ 		[AC_LANG_SOURCE([[
+ #include <stdio.h>
++#include <stdlib.h>
+ #include <sys/socket.h>
+ #include <netdb.h>
+ #include <errno.h>
+@@ -1748,6 +1758,7 @@ AC_TRY_LINK_FUNC(RAND_add, AC_DEFINE(HAVE_OPENSSL, 1,
+ AC_MSG_CHECKING([OpenSSL header version])
+ AC_RUN_IFELSE(
+ 	[AC_LANG_SOURCE([[
++#include <stdlib.h>
+ #include <stdio.h>
+ #include <string.h>
+ #include <openssl/opensslv.h>
+@@ -1794,12 +1805,12 @@ int main(void) {
+ 
+ 	fd = fopen(DATA,"w");
+ 	if(fd == NULL)
+-		exit(1);
++		return 1;
+ 
+ 	if ((rc = fprintf(fd ,"%x (%s)\n", SSLeay(), SSLeay_version(SSLEAY_VERSION))) <0)
+-		exit(1);
++		return 1;
+ 
+-	exit(0);
++	return 0;
+ }
+ 	]])],
+ 	[
+@@ -1829,7 +1840,7 @@ AC_RUN_IFELSE(
+ 	[AC_LANG_SOURCE([[
+ #include <string.h>
+ #include <openssl/opensslv.h>
+-int main(void) { exit(SSLeay() == OPENSSL_VERSION_NUMBER ? 0 : 1); }
++int main(void) { return SSLeay() == OPENSSL_VERSION_NUMBER ? 0 : 1; }
+ 	]])],
+ 	[
+ 		AC_MSG_RESULT(yes)
+@@ -2598,7 +2609,7 @@ dnl test snprintf (broken on SCO w/gcc)
+ #include <stdio.h>
+ #include <string.h>
+ #ifdef HAVE_SNPRINTF
+-main()
++int main(void)
+ {
+ 	char buf[50];
+ 	char expected_out[50];
+@@ -2611,11 +2622,11 @@ main()
+ 	strcpy(expected_out, "9223372036854775807");
+ 	snprintf(buf, mazsize, "%lld", num);
+ 	if(strcmp(buf, expected_out) != 0)
+-		exit(1);
+-	exit(0);
++		return 1;
++	return 0;
+ }
+ #else
+-main() { exit(0); }
++int main(void) { return 0; }
+ #endif
+ 		]])], [ true ], [ AC_DEFINE(BROKEN_SNPRINTF) ],
+ 		AC_MSG_WARN([cross compiling: Assuming working snprintf()])
+@@ -2746,11 +2757,11 @@ AC_CACHE_CHECK([for msg_accrights field in struct msghdr],
+ int main() {
+ #ifdef msg_accrights
+ #error "msg_accrights is a macro"
+-exit(1);
++return 1;
+ #endif
+ struct msghdr m;
+ m.msg_accrights = 0;
+-exit(0);
++return 0;
+ }
+ 		])],
+ 		[ ac_cv_have_accrights_in_msghdr="yes" ],
+@@ -2773,11 +2784,11 @@ AC_CACHE_CHECK([for msg_control field in struct msghdr],
+ int main() {
+ #ifdef msg_control
+ #error "msg_control is a macro"
+-exit(1);
++return 1;
+ #endif
+ struct msghdr m;
+ m.msg_control = 0;
+-exit(0);
++return 0;
+ }
+ 		])],
+ 		[ ac_cv_have_control_in_msghdr="yes" ],
+@@ -2791,7 +2802,7 @@ if test "x$ac_cv_have_control_in_msghdr" = "xyes" ; then
+ fi
+ 
+ AC_CACHE_CHECK([if libc defines __progname], ac_cv_libc_defines___progname, [
+-	AC_TRY_LINK([],
++	AC_TRY_LINK([#include <stdio.h>],
+ 		[ extern char *__progname; printf("%s", __progname); ],
+ 		[ ac_cv_libc_defines___progname="yes" ],
+ 		[ ac_cv_libc_defines___progname="no" ]
+@@ -2871,7 +2882,7 @@ if test "x$ac_cv_have_getopt_optreset" = "xyes" ; then
+ fi
+ 
+ AC_CACHE_CHECK([if libc defines sys_errlist], ac_cv_libc_defines_sys_errlist, [
+-	AC_TRY_LINK([],
++	AC_TRY_LINK([#include <stdio.h>],
+ 		[ extern const char *const sys_errlist[]; printf("%s", sys_errlist[0]);],
+ 		[ ac_cv_libc_defines_sys_errlist="yes" ],
+ 		[ ac_cv_libc_defines_sys_errlist="no" ]
+@@ -2884,7 +2895,7 @@ fi
+ 
+ 
+ AC_CACHE_CHECK([if libc defines sys_nerr], ac_cv_libc_defines_sys_nerr, [
+-	AC_TRY_LINK([],
++	AC_TRY_LINK([#include <stdio.h>],
+ 		[ extern int sys_nerr; printf("%i", sys_nerr);],
+ 		[ ac_cv_libc_defines_sys_nerr="yes" ],
+ 		[ ac_cv_libc_defines_sys_nerr="no" ]