+# Implicit rules are implemented in make as suffix rules. The following rule
+# empties the suffix list to disable the predefined implicit rules. This
+# increases performance and avoids hard-to-debug behaviour.
+.SUFFIXES:
+MAKEFLAGS += -Rr
+ifeq ("$(origin CC)", "default")
+ CC := cc
+endif
+
vardir := /var/paraslash
mandir := $(datarootdir)/man/man1
STRIP := $(CROSS_COMPILE)strip
uname_rs := $(shell uname -rs)
cc_version := $(shell $(CC) --version | head -n 1)
GIT_VERSION := $(shell ./GIT-VERSION-GEN git-version.h)
+build_date := $(shell date)
ifeq ("$(origin O)", "command line")
build_dir := $(O)
$(subst z,Z,$1))))))))))))))))))))))))))
CPPFLAGS += -DBINDIR='"$(bindir)"'
-CPPFLAGS += -DBUILD_DATE='"$(shell date)"'
-CPPFLAGS += -DUNAME_RS='"$(shell uname -rs)"'
-CPPFLAGS += -DCC_VERSION='"$(shell $(CC) --version | head -n 1)"'
+CPPFLAGS += -DBUILD_DATE='"$(build_date)"'
+CPPFLAGS += -DUNAME_RS='"$(uname_rs)"'
+CPPFLAGS += -DCC_VERSION='"$(cc_version)"'
CPPFLAGS += -DMAIN_INPUT_FILE_IS_$(*F)
-CPPFLAGS += $(arch_cppflags)
CPPFLAGS += -I/usr/local/include
CPPFLAGS += -I$(cmdline_dir)
CPPFLAGS += -I$(cmdlist_dir)