argv_fuzzing Makefile: portable version

2 files changed, 56 insertions, 53 deletions

diff --git a/examples/argv_fuzzing/GNUmakefile b/examples/argv_fuzzing/GNUmakefile
deleted file mode 100644
index 34192e39..00000000
--- a/examples/argv_fuzzing/GNUmakefile
+++ /dev/null
@@ -1,51 +0,0 @@
-#
-# american fuzzy lop++ - argvfuzz
-# --------------------------------
-#
-# Copyright 2019-2020 Kjell Braden <afflux@pentabarf.de>
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at:
-#
-#   http://www.apache.org/licenses/LICENSE-2.0
-#
-
-.PHONY: all install clean
-
-PREFIX     ?= /usr/local
-BIN_PATH    = $(PREFIX)/bin
-HELPER_PATH = $(PREFIX)/lib/afl
-
-CFLAGS = -fPIC -Wall -Wextra
-LDFLAGS = -shared
-
-ifneq "$(filter Linux GNU%,$(shell uname))" ""
-  LDFLAGS  += -ldl
-endif
-
-# on gcc for arm there is no -m32, but -mbe32
-M32FLAG = -m32
-M64FLAG = -m64
-ifeq "$(findstring clang, $(shell $(CC) --version 2>/dev/null))" ""
- ifneq (,$(findstring arm, "$(shell $(CC) -v 2>&1 >/dev/null)"))
-  M32FLAG = -mbe32
- endif
-endif
-
-
-all: argvfuzz32.so argvfuzz64.so
-
-argvfuzz32.so: argvfuzz.c
-	-$(CC) $(M32FLAG) $(CFLAGS) $^ $(LDFLAGS) -o $@ || echo "argvfuzz32 build failure (that's fine)"
-
-argvfuzz64.so: argvfuzz.c
-	-$(CC) $(M64FLAG) $(CFLAGS) $^ $(LDFLAGS) -o $@ || echo "argvfuzz64 build failure (that's fine)"
-
-install: argvfuzz32.so argvfuzz64.so
-	install -d -m 755 $(DESTDIR)$(HELPER_PATH)/
-	if [ -f argvfuzz32.so ]; then set -e; install -m 755 argvfuzz32.so $(DESTDIR)$(HELPER_PATH)/; fi
-	if [ -f argvfuzz64.so ]; then set -e; install -m 755 argvfuzz64.so $(DESTDIR)$(HELPER_PATH)/; fi
-
-clean:
-	rm -f argvfuzz32.so argvfuzz64.so
diff --git a/examples/argv_fuzzing/Makefile b/examples/argv_fuzzing/Makefile
index 0b306dde..104d0f55 100644
--- a/examples/argv_fuzzing/Makefile
+++ b/examples/argv_fuzzing/Makefile
@@ -1,2 +1,56 @@
-all:
-	@echo please use GNU make, thanks!
+#
+# american fuzzy lop++ - argvfuzz
+# --------------------------------
+#
+# Copyright 2019-2020 Kjell Braden <afflux@pentabarf.de>
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at:
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+
+.PHONY: all install clean
+
+PREFIX     ?= /usr/local
+BIN_PATH    = $(PREFIX)/bin
+HELPER_PATH = $(PREFIX)/lib/afl
+
+CFLAGS = -fPIC -Wall -Wextra
+LDFLAGS = -shared
+
+UNAME_SAYS_LINUX=$(shell uname | grep -E '^Linux|^GNU' >/dev/null; echo $$?)
+UNAME_SAYS_LINUX:sh=uname | grep -E '^Linux|^GNU' >/dev/null; echo $$?
+
+_LDFLAGS_ADD=$(UNAME_SAYS_LINUX:1=)
+LDFLAGS_ADD=$(_LDFLAGS_ADD:0=-ldl)
+LDFLAGS  += $(LDFLAGS_ADD)
+
+# on gcc for arm there is no -m32, but -mbe32
+M32FLAG = -m32
+M64FLAG = -m64
+
+CC_IS_GCC=$(shell $(CC) --version 2>/dev/null | grep gcc; echo $$?)
+CC_IS_ARMCOMPILER=$(shell $(CC) -v 2>&1 >/dev/null | grep arm; echo $$?)
+
+_M32FLAG=$(CC_IS_GCC)$(CC_IS_ARMCOMPILER)
+__M32FLAG=$(_M32FLAG:00=-mbe32)
+___M32FLAG=$(__M32FLAG:$(CC_IS_GCC)$(CC_IS_ARMCOMPILER)=-m32)
+M32FLAG=$(___M32FLAG)
+
+all: argvfuzz32.so argvfuzz64.so
+
+argvfuzz32.so: argvfuzz.c
+	-$(CC) $(M32FLAG) $(CFLAGS) $^ $(LDFLAGS) -o $@ || echo "argvfuzz32 build failure (that's fine)"
+
+argvfuzz64.so: argvfuzz.c
+	-$(CC) $(M64FLAG) $(CFLAGS) $^ $(LDFLAGS) -o $@ || echo "argvfuzz64 build failure (that's fine)"
+
+install: argvfuzz32.so argvfuzz64.so
+	install -d -m 755 $(DESTDIR)$(HELPER_PATH)/
+	if [ -f argvfuzz32.so ]; then set -e; install -m 755 argvfuzz32.so $(DESTDIR)$(HELPER_PATH)/; fi
+	if [ -f argvfuzz64.so ]; then set -e; install -m 755 argvfuzz64.so $(DESTDIR)$(HELPER_PATH)/; fi
+
+clean:
+	rm -f argvfuzz32.so argvfuzz64.so