diff --git a/tools/genmacro/Makefile.inc b/tools/genmacro/Makefile.inc
index 6232b9c4..c81edd14 100644
--- a/tools/genmacro/Makefile.inc
+++ b/tools/genmacro/Makefile.inc
@@ -11,5 +11,6 @@ genmacro_LDADD = genmacro.$(OBJEXT)
 genmacro_LINK = $(CCLD_FOR_BUILD) -o $@
 
 genmacro.$(OBJEXT): tools/genmacro/genmacro.c
-	$(CC_FOR_BUILD) $(DEFAULT_INCLUDES) $(INCLUDES) -c -o $@ `test -f tools/genmacro/genmacro.c || echo '$(srcdir)/'`tools/genmacro/genmacro.c
+	$(CC_FOR_BUILD) $(CFLAGS_FOR_BUILD) $(DEFAULT_INCLUDES) $(INCLUDES) \
+	  -c -o $@ `test -f tools/genmacro/genmacro.c || echo '$(srcdir)/'`tools/genmacro/genmacro.c
 
diff --git a/tools/genperf/Makefile.inc b/tools/genperf/Makefile.inc
index b7e80ed8..d9f24afa 100644
--- a/tools/genperf/Makefile.inc
+++ b/tools/genperf/Makefile.inc
@@ -23,17 +23,22 @@ genperf_LDADD += gp-xstrdup.$(OBJEXT)
 genperf_LINK = $(CCLD_FOR_BUILD) -o $@
 
 genperf.$(OBJEXT): tools/genperf/genperf.c
-	$(CC_FOR_BUILD) $(DEFAULT_INCLUDES) $(INCLUDES) -c -o $@ `test -f tools/genperf/genperf.c || echo '$(srcdir)/'`tools/genperf/genperf.c
+	$(CC_FOR_BUILD) $(CFLAGS_FOR_BUILD) $(DEFAULT_INCLUDES) $(INCLUDES) \
+	  -c -o $@ `test -f tools/genperf/genperf.c || echo '$(srcdir)/'`tools/genperf/genperf.c
 
 gp-perfect.$(OBJEXT): tools/genperf/perfect.c
-	$(CC_FOR_BUILD) $(DEFAULT_INCLUDES) $(INCLUDES) -c -o $@ `test -f tools/genperf/perfect.c || echo '$(srcdir)/'`tools/genperf/perfect.c
+	$(CC_FOR_BUILD) $(CFLAGS_FOR_BUILD) $(DEFAULT_INCLUDES) $(INCLUDES) \
+	  -c -o $@ `test -f tools/genperf/perfect.c || echo '$(srcdir)/'`tools/genperf/perfect.c
 
 gp-phash.$(OBJEXT): libyasm/phash.c
-	$(CC_FOR_BUILD) $(DEFAULT_INCLUDES) $(INCLUDES) -c -o $@ `test -f libyasm/phash.c || echo '$(srcdir)/'`libyasm/phash.c
+	$(CC_FOR_BUILD) $(CFLAGS_FOR_BUILD) $(DEFAULT_INCLUDES) $(INCLUDES) \
+	  -c -o $@ `test -f libyasm/phash.c || echo '$(srcdir)/'`libyasm/phash.c
 
 gp-xmalloc.$(OBJEXT): libyasm/xmalloc.c
-	$(CC_FOR_BUILD) $(DEFAULT_INCLUDES) $(INCLUDES) -c -o $@ `test -f libyasm/xmalloc.c || echo '$(srcdir)/'`libyasm/xmalloc.c
+	$(CC_FOR_BUILD) $(CFLAGS_FOR_BUILD) $(DEFAULT_INCLUDES) $(INCLUDES) \
+	  -c -o $@ `test -f libyasm/xmalloc.c || echo '$(srcdir)/'`libyasm/xmalloc.c
 
 gp-xstrdup.$(OBJEXT): libyasm/xstrdup.c
-	$(CC_FOR_BUILD) $(DEFAULT_INCLUDES) $(INCLUDES) -c -o $@ `test -f libyasm/xstrdup.c || echo '$(srcdir)/'`libyasm/xstrdup.c
+	$(CC_FOR_BUILD) $(CFLAGS_FOR_BUILD) $(DEFAULT_INCLUDES) $(INCLUDES) \
+	  -c -o $@ `test -f libyasm/xstrdup.c || echo '$(srcdir)/'`libyasm/xstrdup.c
 
diff --git a/tools/re2c/Makefile.inc b/tools/re2c/Makefile.inc
index abd2db87..ceff9087 100644
--- a/tools/re2c/Makefile.inc
+++ b/tools/re2c/Makefile.inc
@@ -38,31 +38,40 @@ re2c_LDADD += re2c-translate.$(OBJEXT)
 re2c_LINK = $(CCLD_FOR_BUILD) -o $@
 
 re2c-main.$(OBJEXT): tools/re2c/main.c
-	$(CC_FOR_BUILD) $(DEFAULT_INCLUDES) $(INCLUDES) -c -o $@ `test -f tools/re2c/main.c || echo '$(srcdir)/'`tools/re2c/main.c
+	$(CC_FOR_BUILD) $(CFLAGS_FOR_BUILD) $(DEFAULT_INCLUDES) $(INCLUDES) \
+	  -c -o $@ `test -f tools/re2c/main.c || echo '$(srcdir)/'`tools/re2c/main.c
 
 re2c-code.$(OBJEXT): tools/re2c/code.c
-	$(CC_FOR_BUILD) $(DEFAULT_INCLUDES) $(INCLUDES) -c -o $@ `test -f tools/re2c/code.c || echo '$(srcdir)/'`tools/re2c/code.c
+	$(CC_FOR_BUILD) $(CFLAGS_FOR_BUILD) $(DEFAULT_INCLUDES) $(INCLUDES) \
+	  -c -o $@ `test -f tools/re2c/code.c || echo '$(srcdir)/'`tools/re2c/code.c
 
 re2c-dfa.$(OBJEXT): tools/re2c/dfa.c
-	$(CC_FOR_BUILD) $(DEFAULT_INCLUDES) $(INCLUDES) -c -o $@ `test -f tools/re2c/dfa.c || echo '$(srcdir)/'`tools/re2c/dfa.c
+	$(CC_FOR_BUILD) $(CFLAGS_FOR_BUILD) $(DEFAULT_INCLUDES) $(INCLUDES) \
+	  -c -o $@ `test -f tools/re2c/dfa.c || echo '$(srcdir)/'`tools/re2c/dfa.c
 
 re2c-parser.$(OBJEXT): tools/re2c/parser.c
-	$(CC_FOR_BUILD) $(DEFAULT_INCLUDES) $(INCLUDES) -c -o $@ `test -f tools/re2c/parser.c || echo '$(srcdir)/'`tools/re2c/parser.c
+	$(CC_FOR_BUILD) $(CFLAGS_FOR_BUILD) $(DEFAULT_INCLUDES) $(INCLUDES) \
+	  -c -o $@ `test -f tools/re2c/parser.c || echo '$(srcdir)/'`tools/re2c/parser.c
 
 re2c-actions.$(OBJEXT): tools/re2c/actions.c
-	$(CC_FOR_BUILD) $(DEFAULT_INCLUDES) $(INCLUDES) -c -o $@ `test -f tools/re2c/actions.c || echo '$(srcdir)/'`tools/re2c/actions.c
+	$(CC_FOR_BUILD) $(CFLAGS_FOR_BUILD) $(DEFAULT_INCLUDES) $(INCLUDES) \
+	  -c -o $@ `test -f tools/re2c/actions.c || echo '$(srcdir)/'`tools/re2c/actions.c
 
 re2c-scanner.$(OBJEXT): tools/re2c/scanner.c
-	$(CC_FOR_BUILD) $(DEFAULT_INCLUDES) $(INCLUDES) -c -o $@ `test -f tools/re2c/scanner.c || echo '$(srcdir)/'`tools/re2c/scanner.c
+	$(CC_FOR_BUILD) $(CFLAGS_FOR_BUILD) $(DEFAULT_INCLUDES) $(INCLUDES) \
+	  -c -o $@ `test -f tools/re2c/scanner.c || echo '$(srcdir)/'`tools/re2c/scanner.c
 
 re2c-mbo_getopt.$(OBJEXT): tools/re2c/mbo_getopt.c
-	$(CC_FOR_BUILD) $(DEFAULT_INCLUDES) $(INCLUDES) -c -o $@ `test -f tools/re2c/mbo_getopt.c || echo '$(srcdir)/'`tools/re2c/mbo_getopt.c
+	$(CC_FOR_BUILD) $(CFLAGS_FOR_BUILD) $(DEFAULT_INCLUDES) $(INCLUDES) \
+	  -c -o $@ `test -f tools/re2c/mbo_getopt.c || echo '$(srcdir)/'`tools/re2c/mbo_getopt.c
 
 re2c-substr.$(OBJEXT): tools/re2c/substr.c
-	$(CC_FOR_BUILD) $(DEFAULT_INCLUDES) $(INCLUDES) -c -o $@ `test -f tools/re2c/substr.c || echo '$(srcdir)/'`tools/re2c/substr.c
+	$(CC_FOR_BUILD) $(CFLAGS_FOR_BUILD) $(DEFAULT_INCLUDES) $(INCLUDES) \
+	  -c -o $@ `test -f tools/re2c/substr.c || echo '$(srcdir)/'`tools/re2c/substr.c
 
 re2c-translate.$(OBJEXT): tools/re2c/translate.c
-	$(CC_FOR_BUILD) $(DEFAULT_INCLUDES) $(INCLUDES) -c -o $@ `test -f tools/re2c/translate.c || echo '$(srcdir)/'`tools/re2c/translate.c
+	$(CC_FOR_BUILD) $(CFLAGS_FOR_BUILD) $(DEFAULT_INCLUDES) $(INCLUDES) \
+	  -c -o $@ `test -f tools/re2c/translate.c || echo '$(srcdir)/'`tools/re2c/translate.c
 
 EXTRA_DIST += tools/re2c/CHANGELOG
 EXTRA_DIST += tools/re2c/NO_WARRANTY