www-servers/lighttpd: fix build on sparc

Closes: https://bugs.gentoo.org/931305
Signed-off-by: Sam James <sam@gentoo.org>

2 files changed, 78 insertions, 0 deletions

diff --git a/www-servers/lighttpd/files/lighttpd-1.4.75-sparc.patch b/www-servers/lighttpd/files/lighttpd-1.4.75-sparc.patch
new file mode 100644
index 000000000000..d7bd72973b94
--- /dev/null
+++ b/www-servers/lighttpd/files/lighttpd-1.4.75-sparc.patch
@@ -0,0 +1,74 @@
+https://bugs.gentoo.org/931305
+https://github.com/lighttpd/lighttpd1.4/commit/524614455554163ec78b27b89ff52bbf7fe96958
+
+From 524614455554163ec78b27b89ff52bbf7fe96958 Mon Sep 17 00:00:00 2001
+From: Glenn Strauss <gstrauss@gluelogic.com>
+Date: Wed, 24 Apr 2024 03:07:37 -0400
+Subject: [PATCH] [core] special value for Linux POLLRDHUP on SPARC (fixes
+ #3251)
+
+x-ref:
+  "[1.4.76] buildroot compile error with bootlin-sparc{64-g,-uc}libc"
+  https://redmine.lighttpd.net/issues/3251
+--- a/src/fdevent.h
++++ b/src/fdevent.h
+@@ -40,6 +40,8 @@ struct fdnode_st {
+ #if (defined(__sun) && defined(__SVR4)) /* Solaris */ \
+  || defined(__FreeBSD__)
+ #define FDEVENT_RDHUP  0x4000
++#elif (defined(__linux__) && (defined(__sparc__) || defined(__sparc)))
++#define FDEVENT_RDHUP  0x2800 /*(0x2000 EPOLLRDHUP | 0x0800 POLLRDHUP)*/
+ #else
+ #define FDEVENT_RDHUP  0x2000
+ #endif
+--- a/src/fdevent_impl.c
++++ b/src/fdevent_impl.c
+@@ -338,6 +338,11 @@ fdevent_linux_sysepoll_event_set (fdevents *ev, fdnode *fdn, int events)
+     struct epoll_event ep;
+   #ifndef EPOLLRDHUP
+     events &= ~FDEVENT_RDHUP;
++  #elif (defined(__linux__) && (defined(__sparc__) || defined(__sparc)))
++    if (events & FDEVENT_RDHUP) {
++        events &= ~FDEVENT_RDHUP;
++        events |= EPOLLRDHUP;
++    }
+   #endif
+     ep.events = events | EPOLLERR | EPOLLHUP;
+     ep.data.ptr = fdn;
+@@ -376,7 +381,11 @@ fdevent_linux_sysepoll_init (fdevents *ev)
+     ck_static_assert(EPOLLERR   == FDEVENT_ERR);
+     ck_static_assert(EPOLLHUP   == FDEVENT_HUP);
+   #ifdef EPOLLRDHUP
++   #if (defined(__linux__) && (defined(__sparc__) || defined(__sparc)))
++    ck_static_assert(EPOLLRDHUP  & FDEVENT_RDHUP);
++   #else
+     ck_static_assert(EPOLLRDHUP == FDEVENT_RDHUP);
++   #endif
+   #endif
+ 
+     ev->type      = FDEVENT_HANDLER_LINUX_SYSEPOLL;
+@@ -770,6 +779,11 @@ fdevent_poll_event_set (fdevents *ev, fdnode *fdn, int events)
+ 
+   #ifndef POLLRDHUP
+     events &= ~FDEVENT_RDHUP;
++  #elif (defined(__linux__) && (defined(__sparc__) || defined(__sparc)))
++    if (events & FDEVENT_RDHUP) {
++        events &= ~FDEVENT_RDHUP;
++        events |= POLLRDHUP;
++    }
+   #endif
+ 
+     if (k >= 0) {
+@@ -854,7 +868,11 @@ fdevent_poll_init (fdevents *ev)
+     ck_static_assert(POLLHUP   == FDEVENT_HUP);
+     ck_static_assert(POLLNVAL  == FDEVENT_NVAL);
+   #ifdef POLLRDHUP
++   #if (defined(__linux__) && (defined(__sparc__) || defined(__sparc)))
++    ck_static_assert(POLLRDHUP  & FDEVENT_RDHUP);
++   #else
+     ck_static_assert(POLLRDHUP == FDEVENT_RDHUP);
++   #endif
+   #endif
+ 
+     ev->type      = FDEVENT_HANDLER_POLL;
+
diff --git a/www-servers/lighttpd/lighttpd-1.4.75.ebuild b/www-servers/lighttpd/lighttpd-1.4.75.ebuild
index 4def4402a70a..dc161bf17a69 100644
--- a/www-servers/lighttpd/lighttpd-1.4.75.ebuild
+++ b/www-servers/lighttpd/lighttpd-1.4.75.ebuild
@@ -69,6 +69,10 @@ BDEPEND="
 	verify-sig? ( sec-keys/openpgp-keys-lighttpd )
 "
 
+PATCHES=(
+	"${FILESDIR}"/${PN}-1.4.75-sparc.patch
+)
+
 # update certain parts of lighttpd.conf based on conditionals
 update_config() {
 	local config="${ED}/etc/lighttpd/lighttpd.conf"