File praat-allow-system-flags.patch of Package praat

Index: praat-6.3.02/makefiles/makefile.defs.linux.pulse
===================================================================
--- praat-6.3.02.orig/makefiles/makefile.defs.linux.pulse
+++ praat-6.3.02/makefiles/makefile.defs.linux.pulse
@@ -12,13 +12,13 @@ PKG_CONFIG ?= "pkg-config"
 COMMONFLAGS = -DUNIX -Dlinux -DALSA -DHAVE_PULSEAUDIO -D_FILE_OFFSET_BITS=64 `$(PKG_CONFIG) --cflags gtk+-3.0` \
 	-Wreturn-type -Wunused -Wunused-parameter -Wuninitialized -O3 -g1 -pthread
 
-CFLAGS = -std=gnu99 $(COMMONFLAGS) -Werror=missing-prototypes -Werror=implicit
+CFLAGS += -std=gnu99 $(COMMONFLAGS) -Werror=missing-prototypes -Werror=implicit
 
-CXXFLAGS = -std=c++17 $(COMMONFLAGS) -Wshadow
+CXXFLAGS += -std=c++17 $(COMMONFLAGS) -Wshadow
 
 EXECUTABLE = praat
 
-LIBS = `$(PKG_CONFIG) --libs gtk+-3.0` -no-pie -lm -lpulse -lasound -lpthread -L /usr/lib/x86_64-linux-gnu
+LIBS = ${LDFLAGS} `$(PKG_CONFIG) --libs gtk+-3.0` -no-pie -lm -lpulse -lasound -lpthread -L /usr/lib/x86_64-linux-gnu
 
 AR = ar
 RANLIB = ls