Fix build on automake 1.10.1

Fix building on musl and with gcc 10

.gitignore

@@ -3,6 +3,7 @@ Makefile.in
 .deps
 .libs
 .msg
+.dirstamp
 *.lo
 *.la
 *.a

Makefile.am

@@ -1,3 +1,5 @@
+AUTOMAKE_OPTIONS = subdir-objects
+
 ACLOCAL_AMFLAGS=-I m4
 
 if DBE

Xext/xf86bigfont.c

@@ -39,13 +39,15 @@
 #endif
 
 #include <sys/types.h>
-#if defined(linux) && (!defined(__GNU_LIBRARY__) || __GNU_LIBRARY__ < 2)
-/* libc4 does not define __GNU_LIBRARY__, libc5 defines __GNU_LIBRARY__ as 1 */
-/* Linux libc4 and libc5 only (because glibc doesn't include kernel headers):
-   Linux 2.0.x and 2.2.x define SHMLBA as PAGE_SIZE, but forget to define
-   PAGE_SIZE. It is defined in <asm/page.h>. */
-#include <asm/page.h>
+
+#ifdef __linux__
+# ifdef __GNU_LIBRARY__
+#  if __GNU_LIBRARY__ < 2	/* libc5 */
+#  include <asm/page.h>
+#  endif
+# endif
 #endif
+
 #include <sys/ipc.h>
 #include <sys/shm.h>
 #include <sys/stat.h>

configure.ac

@@ -23,8 +23,10 @@ dnl Process this file with autoconf to create configure.
 
 AC_PREREQ(2.57)
 AC_INIT([tinyx], 1.3)
+AC_PREREQ([2.60])
 AC_CONFIG_SRCDIR([Makefile.am])
 AC_CONFIG_MACRO_DIR([m4])
+AC_USE_SYSTEM_EXTENSIONS
 AM_INIT_AUTOMAKE([dist-bzip2 no-dist-gzip foreign -Wall])
 
 dnl this gets generated by autoheader, and thus contains all the defines.  we
@@ -37,7 +39,8 @@ dnl kdrive-config.h covers the kdrive DDX
 AC_CONFIG_HEADERS(include/kdrive-config.h)
 
 AC_PROG_CC
-AM_PROG_AR
+AM_PROG_CC_C_O
+m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
 AM_PROG_AS
 AC_PROG_INSTALL
 AC_PROG_LN_S
@@ -574,14 +577,6 @@ AM_CONDITIONAL(KDRIVEFBDEV, [test x"$ac_cv_header_linux_fb_h" = xyes])
 dnl and the rest of these are generic, so they're in config.h
 AC_DEFINE(XResExtension, 1, [Build XRes extension])
 
-AC_TRY_COMPILE([
-#include <features.h>
-#ifndef __GLIBC__
-#error not glibc
-#endif
-], [], [AC_DEFINE(_GNU_SOURCE, 1,
-	[ Enable GNU and other extensions to the C environment for glibc])])
-
 dnl ---------- Compiler arguments
 
 AX_CHECK_COMPILE_FLAG([-flto],

include/input.h

@@ -328,6 +328,6 @@ void ProcessInputEvents(void);
 
 void InitInput(
     int  /*argc*/,
-    char ** /*argv*/);
+    char ** /*argv*/) XFONT_LTO;
 
 #endif /* INPUT_H */

include/os.h

@@ -231,7 +231,7 @@ void OsCleanup(Bool);
 
 void OsVendorFatalError(void);
 
-void OsVendorInit(void);
+void OsVendorInit(void) XFONT_LTO;
 
 void OsBlockSignals (void);
 
@@ -320,9 +320,9 @@ XID GenerateAuthorization(
     char	** /* data_return */);
 
 
-int ddxProcessArgument(int /*argc*/, char * /*argv*/ [], int /*i*/);
+XFONT_LTO int ddxProcessArgument(int /*argc*/, char * /*argv*/ [], int /*i*/);
 
-void ddxUseMsg(void);
+void ddxUseMsg(void) XFONT_LTO;
 
 /* int ReqLen(xReq *req, ClientPtr client)
  * Given a pointer to a *complete* request, return its length in bytes.

include/scrnintstr.h

@@ -527,6 +527,6 @@ extern ScreenInfo screenInfo;
 void InitOutput(
     ScreenInfo 	* /*pScreenInfo*/,
     int     	/*argc*/,
-    char    	** /*argv*/);
+    char    	** /*argv*/) XFONT_LTO;
 
 #endif /* SCREENINTSTRUCT_H */

kdrive/linux/linux.c

@@ -34,6 +34,12 @@
 #include <X11/keysym.h>
 #include <linux/apm_bios.h>
 
+/* These symbols are not defined on musl */
+#if !defined(__uid_t) && !defined(__gid_t)
+#define __uid_t uid_t
+#define __gid_t gid_t
+#endif
+
 static int vtno;
 int LinuxConsoleFd;
 static int LinuxApmFd;

kdrive/src/Makefile.am

@@ -1,3 +1,5 @@
+AUTOMAKE_OPTIONS = subdir-objects
+
 AM_CPPFLAGS = 					\
 	@KDRIVE_INCS@				\
 	@KDRIVE_CFLAGS@
@@ -16,7 +18,7 @@ libkdrive_a_SOURCES =	\
 	kmap.c		\
 	kmode.c		\
 	kshadow.c	\
-        $(top_srcdir)/mi/miinitext.c
+        ../../mi/miinitext.c
 
 libkdrivestubs_a_SOURCES = \
-        $(top_srcdir)/fb/fbcmap.c
+        ../../fb/fbcmap.c

kdrive/src/kdrive.h

@@ -414,6 +414,6 @@ KdShadowSet(ScreenPtr pScreen, int randr, ShadowUpdateProc update,
 void KdShadowUnset(ScreenPtr pScreen);
 
 /* function prototypes to be implemented by the drivers */
-void InitCard(char *name);
+void InitCard(char *name) XFONT_LTO;
 
 #endif				/* _KDRIVE_H_ */