Update build system to leverage libgotcha's "cp" replacement feature

Now, the only symlink one has to create is one to the libgotcha/ tree.

Author: solb

.gitignore

@@ -1,6 +1,4 @@
-/libgotcha.h
-/libgotcha.mk
-/libgotcha_repl.h
+/libgotcha
 
 *.a
 *.o

Makefile

@@ -1,16 +1,13 @@
 CFLAGS   += -std=c99 -g -O2 -fpic -fno-optimize-sibling-calls -Wall -Wextra -Wpedantic
-CPPFLAGS += -D_DEFAULT_SOURCE
+CPPFLAGS += -I$(LIBGOTCHA_PATH) -D_DEFAULT_SOURCE
 
--include libgotcha.mk
+CP := objcopy -Wsigaction --globalize-symbol libgotcha_sigaction --globalize-symbol libgotcha_pthread_sigmask --globalize-symbol libgotcha_sigaddset --globalize-symbol libgotcha_sigfillset
 
 .PHONY: all
 all: libas-safe.so
 
-libas-safe.so: libgotcha.h
-
-libgotcha.a: libgotcha/libgotcha.a
-	objcopy -Wsigaction --globalize-symbol libgotcha_sigaction --globalize-symbol libgotcha_pthread_sigmask --globalize-symbol libgotcha_sigaddset --globalize-symbol libgotcha_sigfillset $< $@
-
 .PHONY: clean
 clean:
 	$(RM) *.a *.o *.so
+
+include libgotcha/libgotcha.mk

as-safe.c

@@ -1,4 +1,4 @@
-#include "libgotcha.h"
+#include "libgotcha_api.h"
 #include "libgotcha_repl.h"
 
 #include <assert.h>