From: Shine <4c.fce2@proton.me>
Date: Mon, 2 Feb 2026 22:06:44 +0000 (+0100)
Subject: tools: bc: fix build on musl host
X-Git-Url: http://git.ipfire.org/gitweb/?a=commitdiff_plain;ds=inline;p=thirdparty%2Fopenwrt.git

tools: bc: fix build on musl host

Fix declaration of getenv() in getopt.c

Backport from bc 1.08.2.

Signed-off-by: Shine <4c.fce2@proton.me>
Link: https://github.com/openwrt/openwrt/pull/21957
Signed-off-by: Jonas Jelonek <jelonek.jonas@gmail.com>
---

diff --git a/tools/bc/patches/001-getopt-declaration.patch b/tools/bc/patches/001-getopt-declaration.patch
new file mode 100644
index 00000000000..c64be8dc032
--- /dev/null
+++ b/tools/bc/patches/001-getopt-declaration.patch
@@ -0,0 +1,11 @@
+--- a/lib/getopt.c
++++ b/lib/getopt.c
+@@ -197,7 +197,7 @@ static char *posixly_correct;
+    whose names are inconsistent.  */
+ 
+ #ifndef getenv
+-extern char *getenv ();
++extern char *getenv (const char *);
+ #endif
+ 
+ #endif /* not __GNU_LIBRARY__ */