From: Mark Adler <madler@alumni.caltech.edu>
Date: Sun, 9 Oct 2011 17:16:43 +0000 (-0700)
Subject: Add --cover option to ./configure for gcc coverage testing.
X-Git-Tag: v1.2.5.2~24
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d66a30794183e04f121fd1464d7bfcfbbcaf64ed;p=thirdparty%2Fzlib-ng.git

Add --cover option to ./configure for gcc coverage testing.

This adds the -fprofile-arcs and -ftest-coverage options when compiling
the source code for the static library.  Those same options must then be
used when linking the static library into an executable.  This updates
Makefile.in to remove and .gitignore to ignore the files generated when
testing coverage.
---

diff --git a/.gitignore b/.gitignore
index 81d3ed29c..8c6bce0b9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,6 +9,10 @@
 *.o
 *.dylib
 
+*.gcda
+*.gcno
+*.gcov
+
 /example
 /example64
 /examplesh
diff --git a/Makefile.in b/Makefile.in
index 1b8bf3f82..9ac04060f 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -232,6 +232,7 @@ clean:
 	   libz.* foo.gz so_locations \
 	   _match.s maketree contrib/infback9/*.o
 	rm -rf objs
+	rm -f *.gcda *.gcno *.gcov
 
 maintainer-clean: distclean
 distclean: clean zconf zconf.h.cmakein docs
diff --git a/configure b/configure
index 672b24fec..d15c03b69 100755
--- a/configure
+++ b/configure
@@ -55,6 +55,7 @@ mandir=${mandir-'${prefix}/share/man'}
 shared_ext='.so'
 shared=1
 solo=0
+cover=0
 zprefix=0
 build64=0
 gcc=0
@@ -85,6 +86,7 @@ case "$1" in
     -s* | --shared | --enable-shared) shared=1; shift ;;
     -t | --static) shared=0; shift ;;
     --solo) solo=1; shift ;;
+    --cover) cover=1; shift ;;
     -z* | --zprefix) zprefix=1; shift ;;
     -6* | --64) build64=1; shift ;;
     -a*=* | --archs=*) ARCHS=`echo $1 | sed 's/.*=//'`; shift ;;
@@ -345,6 +347,10 @@ OBJC='$(OBJZ)'
 PIC_OBJC='$(PIC_OBJZ)'
 fi
 
+if test $cover -eq 1; then
+  CFLAGS="${CFLAGS} -fprofile-arcs -ftest-coverage"
+fi
+
 cat > $test.c <<EOF
 #include <stdio.h>
 #include <stdarg.h>
@@ -578,7 +584,7 @@ case $CFLAGS in
     fi ;;
 esac
 
-rm -f $test.[co] $test $test$shared_ext
+rm -f $test.[co] $test $test$shared_ext $test.gcno
 
 # udpate Makefile
 sed < Makefile.in "