5 files changed, 15 insertions, 9 deletions

diff --git a/src/bash_completion/Makefile b/src/bash_completion/Makefile
index 91a1be0bc..c06323f64 100644
--- a/src/bash_completion/Makefile
+++ b/src/bash_completion/Makefile
@@ -3,6 +3,7 @@ ROOT = ../..
 -include $(ROOT)/config.mk
 
 GAWK ?= gawk
+RM ?= rm -f
 
 .PHONY: all
 all: firejail.bash_completion
@@ -10,8 +11,8 @@ all: firejail.bash_completion
 firejail.bash_completion: firejail.bash_completion.in $(ROOT)/config.mk
         $(GAWK) -f ../man/preproc.awk -- $(MANFLAGS) < $< > $@.tmp
         sed "s|_SYSCONFDIR_|$(sysconfdir)|" < $@.tmp > $@
-        rm $@.tmp
+        $(RM) $@.tmp
 
 .PHONY: clean
 clean:
-        rm -fr firejail.bash_completion
+        $(RM) -r firejail.bash_completion
diff --git a/src/man/Makefile b/src/man/Makefile
index 682aadaad..767920e2b 100644
--- a/src/man/Makefile
+++ b/src/man/Makefile
@@ -3,6 +3,8 @@ ROOT = ../..
 -include $(ROOT)/config.mk
 
 GAWK ?= gawk
+GZIP ?= gzip
+RM ?= rm -f
 
 MOD_DIR := $(ROOT)/src/man
 MANPAGES_IN := $(sort $(wildcard $(MOD_DIR)/*.in))
@@ -21,8 +23,8 @@ $(MOD_DIR)/%: $(MOD_DIR)/%.in $(ROOT)/config.mk
 # foo.1.gz: foo.1
 $(MOD_DIR)/%.gz: $(MOD_DIR)/%
         @printf 'Generating %s from %s\n' $@ $<
-        @rm -f $@
-        @gzip -n9 $<
+        @$(RM) $@
+        @$(GZIP) -n9 $<
 
 .PHONY: clean
-clean:; rm -f *.1 *.5 *.gz
+clean:; $(RM) *.1 *.5 *.gz
diff --git a/src/prog.mk b/src/prog.mk
index 4f9309d8c..3e89a6ba8 100644
--- a/src/prog.mk
+++ b/src/prog.mk
@@ -6,6 +6,7 @@
 # define EXTRA_OBJS and extend CLEANFILES.
 
 CC ?= cc
+RM ?= rm -f
 
 HDRS :=
 SRCS := $(sort $(wildcard $(MOD_DIR)/*.c))
@@ -27,4 +28,4 @@ $(PROG): $(OBJS) $(EXTRA_OBJS) $(ROOT)/config.mk
         $(CC) $(PROG_LDFLAGS) $(LDFLAGS) -o $@ $(OBJS) $(EXTRA_OBJS) $(LIBS)
 
 .PHONY: clean
-clean:; rm -fr $(PROG) $(CLEANFILES)
+clean:; $(RM) -r $(PROG) $(CLEANFILES)
diff --git a/src/so.mk b/src/so.mk
index cb1f08b08..63a0da7ce 100644
--- a/src/so.mk
+++ b/src/so.mk
@@ -6,6 +6,7 @@
 # EXTRA_OBJS and extend CLEANFILES.
 
 CC ?= cc
+RM ?= rm -f
 
 HDRS :=
 SRCS := $(sort $(wildcard $(MOD_DIR)/*.c))
@@ -27,4 +28,4 @@ $(SO): $(OBJS) $(EXTRA_OBJS) $(ROOT)/config.mk
         $(CC) $(SO_LDFLAGS) -shared $(LDFLAGS) -o $@ $(OBJS) $(EXTRA_OBJS) -ldl
 
 .PHONY: clean
-clean:; rm -fr $(SO) $(CLEANFILES)
+clean:; $(RM) -r $(SO) $(CLEANFILES)
diff --git a/src/zsh_completion/Makefile b/src/zsh_completion/Makefile
index 80c8b1608..cbc476a73 100644
--- a/src/zsh_completion/Makefile
+++ b/src/zsh_completion/Makefile
@@ -3,6 +3,7 @@ ROOT = ../..
 -include $(ROOT)/config.mk
 
 GAWK ?= gawk
+RM ?= rm -f
 
 .PHONY: all
 all: _firejail
@@ -10,8 +11,8 @@ all: _firejail
 _firejail: _firejail.in $(ROOT)/config.mk
         $(GAWK) -f ../man/preproc.awk -- $(MANFLAGS) < $< > $@.tmp
         sed "s|_SYSCONFDIR_|$(sysconfdir)|" < $@.tmp > $@
-        rm $@.tmp
+        $(RM) $@.tmp
 
 .PHONY: clean
 clean:
-        rm -fr _firejail
+        $(RM) -r _firejail