From 1cf986e9e33fdbbde577183604408d973fc95e67 Mon Sep 17 00:00:00 2001
From: Viktor Szakats <commit@vsz.me>
Date: Thu, 9 Nov 2023 12:06:14 +0000
Subject: [PATCH] Makefile: updates and fixes

- add `TRURL_IGNORE_CURL_CONFIG` to avoid reading `curl-config`.
  This allows to specify curl bits manually without unexpectedly
  picking up system curl bits too.

- allow to disable debug info by passing `NDEBUG=1`.

- drop `-std=gnu99` from `CFLAGS`. This decision should be up to the
  builder, in sync with the curl (and its dependencies) linked to trurl.
  curl doesn't build with this option by default and mixing objects with
  different settings may break the ABI.

- accept `LDLIBS` from the environment.

- one whitespace tidy-up.

Closes #xxx
---
 Makefile | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/Makefile b/Makefile
index 67c433df..f9d319e3 100644
--- a/Makefile
+++ b/Makefile
@@ -24,8 +24,14 @@
 
 TARGET = trurl
 OBJS = trurl.o
-LDLIBS = $$(curl-config --libs)
-CFLAGS += $$(curl-config --cflags) -W -Wall -Wshadow -Werror -pedantic -g -std=gnu99
+ifndef TRURL_IGNORE_CURL_CONFIG
+LDLIBS += $$(curl-config --libs)
+CFLAGS += $$(curl-config --cflags)
+endif
+CFLAGS += -W -Wall -Wshadow -Werror -pedantic
+ifndef NDEBUG
+CFLAGS += -g
+endif
 MANUAL = trurl.1
 
 PREFIX ?= /usr/local
@@ -38,7 +44,7 @@ PYTHON3 ?= python3
 $(TARGET): $(OBJS)
 	$(CC) $(OBJS) -o $(TARGET) $(LDLIBS) $(LDFLAGS)
 
-trurl.o:trurl.c version.h
+trurl.o: trurl.c version.h
 
 .PHONY: install
 install: