2001-07-10 John Healy <jhealy@redhat.com>

[deliverable/binutils-gdb.git] / gprof / configure.in

diff --git a/gprof/configure.in b/gprof/configure.in
index a8bde472daf8d16556055c43a454945f1a3c2cf7..7d6ca2cc25a8c6e03fe810f1139f591a1de75f73 100644 (file)
--- a/gprof/configure.in
+++ b/gprof/configure.in
@@ -29,6 +29,33 @@ CY_GNU_GETTEXT
 AM_MAINTAINER_MODE
 AC_EXEEXT
 
+AC_CHECK_HEADERS(sys/gmon_out.h)
+
+AC_MSG_CHECKING(the size of gmon pointers)
+AC_TRY_RUN([#include <stdio.h>
+#include <stdlib.h>
+#if HAVE_SYS_GMON_OUT_H
+#include <sys/gmon_out.h>
+#endif
+main()
+{
+#if HAVE_SYS_GMON_OUT_H
+  struct gmon_cg_arc_record arc;
+  FILE *f=fopen("conftestval", "w");
+  if (!f) exit(1);
+  fprintf(f, "%d\n", sizeof(arc.from_pc));
+  exit(0);
+#else
+  FILE *f=fopen("conftestval", "w");
+  if (!f) exit(1);
+  fprintf(f, "%d\n", (int) sizeof(char *));
+  exit(1);
+#endif
+}], gmon_ptr_size=`cat conftestval`, gmon_ptr_size=4, gmon_ptr_size=4)
+AC_MSG_RESULT($gmon_ptr_size)
+
+AC_DEFINE_UNQUOTED(GMON_PTR_SIZE, $gmon_ptr_size)
+
 build_warnings="-W -Wall"
 AC_ARG_ENABLE(build-warnings,
 [  --enable-build-warnings Enable build-time compiler warnings if gcc is used],