app-misc/tmux: Fixed musl build

Package-Manager: Portage-2.3.80, Repoman-2.3.19
Signed-off-by: Lars Wendler <polynomial-c@gentoo.org>

2 files changed, 61 insertions, 0 deletions

diff --git a/app-misc/tmux/files/tmux-3.0-musl.patch b/app-misc/tmux/files/tmux-3.0-musl.patch
new file mode 100644
index 000000000000..5369fdd78b08
--- /dev/null
+++ b/app-misc/tmux/files/tmux-3.0-musl.patch
@@ -0,0 +1,60 @@
+From eb4d60b1ce0e2dc917bd47b10a3ce89de840448a Mon Sep 17 00:00:00 2001
+From: nicm <nicm>
+Date: Wed, 27 Nov 2019 20:54:30 +0000
+Subject: [PATCH] REG_STARTEND is not portable, but it turns out we don't
+ actually need it. From Evan Green, GitHub issue 1982.
+
+---
+ regsub.c | 24 ++++++++++++------------
+ 1 file changed, 12 insertions(+), 12 deletions(-)
+
+diff --git a/regsub.c b/regsub.c
+index 199b21714..22e236dc7 100644
+--- a/regsub.c
++++ b/regsub.c
+@@ -77,10 +77,7 @@ regsub(const char *pattern, const char *with, const char *text, int flags)
+ 	end = strlen(text);
+ 
+ 	while (start <= end) {
+-		m[0].rm_so = start;
+-		m[0].rm_eo = end;
+-
+-		if (regexec(&r, text, nitems(m), m, REG_STARTEND) != 0) {
++		if (regexec(&r, text + start, nitems(m), m, 0) != 0) {
+ 			regsub_copy(&buf, &len, text, start, end);
+ 			break;
+ 		}
+@@ -89,22 +86,25 @@ regsub(const char *pattern, const char *with, const char *text, int flags)
+ 		 * Append any text not part of this match (from the end of the
+ 		 * last match).
+ 		 */
+-		regsub_copy(&buf, &len, text, last, m[0].rm_so);
++		regsub_copy(&buf, &len, text, last, m[0].rm_so + start);
+ 
+ 		/*
+ 		 * If the last match was empty and this one isn't (it is either
+ 		 * later or has matched text), expand this match. If it is
+ 		 * empty, move on one character and try again from there.
+ 		 */
+-		if (empty || m[0].rm_so != last || m[0].rm_so != m[0].rm_eo) {
+-			regsub_expand(&buf, &len, with, text, m, nitems(m));
+-
+-			last = m[0].rm_eo;
+-			start = m[0].rm_eo;
++		if (empty ||
++		    start + m[0].rm_so != last ||
++		    m[0].rm_so != m[0].rm_eo) {
++			regsub_expand(&buf, &len, with, text + start, m,
++			    nitems(m));
++
++			last = start + m[0].rm_eo;
++			start += m[0].rm_eo;
+ 			empty = 0;
+ 		} else {
+-			last = m[0].rm_eo;
+-			start = m[0].rm_eo + 1;
++			last = start + m[0].rm_eo;
++			start += m[0].rm_eo + 1;
+ 			empty = 1;
+ 		}
+ 
diff --git a/app-misc/tmux/tmux-3.0.ebuild b/app-misc/tmux/tmux-3.0.ebuild
index 350d8121d213..b0b4fb817a7a 100644
--- a/app-misc/tmux/tmux-3.0.ebuild
+++ b/app-misc/tmux/tmux-3.0.ebuild
@@ -46,6 +46,7 @@ PATCHES=(
 	"${FILESDIR}/${PN}-2.4-flags.patch"
 
 	# upstream fixes (can be removed with next version bump)
+	"${FILESDIR}/${P}-musl.patch"
 )
 
 src_prepare() {