conditional compilation QSORT

configure.ac

@@ -645,11 +645,12 @@ AC_CHECK_FUNCS([isatty tcgetattr tcsetattr])
 
 # Check for a few functions:
 AC_FUNC_FORK([])
-AC_CHECK_FUNCS([access bcopy bzero qsort dup2 popen])
+AC_CHECK_FUNCS([access bcopy bzero dup2 popen])
 AC_CHECK_FUNCS([strchr index], [break])
 AC_CHECK_FUNCS([strrchr rindex], [break])
 AC_CHECK_FUNCS([getcwd getwd], [break])
-
+AC_CHECK_FUNC([qsort], [qsort_checked=true])
+AM_CONDITIONAL([HAVE_QSORT_WANTED], [test "x$qsort_checked" = xtrue])
 
 AC_MSG_RESULT([Checking mathematical features of the system:])
 # Look for math library:

src/frontend/parser/Makefile.am

@@ -17,11 +17,14 @@ libparser_la_SOURCES = \
 		lexical.h	\
 		numparse.c	\
 		numparse.h	\
-		std.c		\
 		unixcom.c	\
 		unixcom.h
 
 
+if !HAVE_QSORT_WANTED
+libparser_la_SOURCES += std.c
+endif
+
 AM_CPPFLAGS = @AM_CPPFLAGS@ -I$(top_srcdir)/src/include
 AM_CFLAGS = $(STATIC)
 MAINTAINERCLEANFILES = Makefile.in

src/frontend/parser/std.c

@@ -14,8 +14,6 @@ Author: 1985 Wayne A. Christopher, U. C. Berkeley CAD Group
 
 /* This might not be around.  If not then forget about sorting. */
 
-#ifndef HAVE_QSORT
 #ifndef qsort
 qsort() {}
 #endif
-#endif