commit: 1e0b8f0d7458644b7e5ef8f697de9c52ec36e4ea Author: Sam James <sam <AT> gentoo <DOT> org> AuthorDate: Tue Mar 12 07:16:16 2024 +0000 Commit: Sam James <sam <AT> gentoo <DOT> org> CommitDate: Tue Mar 12 07:16:48 2024 +0000 URL: https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=1e0b8f0d
media-libs/libcaca: fix build w/ LTO on some arches Avoid configure test getting optimised out. Signed-off-by: Sam James <sam <AT> gentoo.org> media-libs/libcaca/files/configure-lto.patch | 44 +++++++++++++++++++++++ media-libs/libcaca/libcaca-0.99_beta19-r11.ebuild | 1 + 2 files changed, 45 insertions(+) diff --git a/media-libs/libcaca/files/configure-lto.patch b/media-libs/libcaca/files/configure-lto.patch new file mode 100644 index 000000000000..c60989b3c8f4 --- /dev/null +++ b/media-libs/libcaca/files/configure-lto.patch @@ -0,0 +1,44 @@ +https://github.com/cacalabs/libcaca/pull/76 + +[Modified to just save/restore flags.] + +From 07cb730bf3dc49170f0c387d9edcf5537a4e26b6 Mon Sep 17 00:00:00 2001 +From: kxxt <[email protected]> +Date: Wed, 21 Jun 2023 00:06:04 +0800 +Subject: [PATCH] Disable LTO when checking for fsin/fcos/fldln2/... + +LTO might interfere with the instruction detection and produce false positives. +(The conftest.c compiles with `-flto=auto` but fails without it) + +The build for riscv64 arch linux fails because of this: +https://archriscv.felixc.at/.status/log.htm?url=logs/libcaca/libcaca-0.99.beta20-2.log + +This PR fixes it. +--- + configure.ac | 5 +++++ + 1 file changed, 5 insertions(+) + +diff --git a/configure.ac b/configure.ac +index 27b8d5b4..ee38ead3 100644 +--- a/configure.ac ++++ b/configure.ac +@@ -145,6 +145,9 @@ AC_COMPILE_IFELSE( + AC_DEFINE(HAVE_SLEEP, 1, [Define to 1 if you have the ‘Sleep’ function.])], + [AC_MSG_RESULT(no)]) + ++OLD_CFLAGS="${CFLAGS}" # Disable LTO when checking for the instructions ++CFLAGS="${CFLAGS} -fno-lto" ++ + AC_MSG_CHECKING(for fsin/fcos) + AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( +@@ -163,6 +166,8 @@ AC_COMPILE_IFELSE( + AC_DEFINE(HAVE_FLDLN2, 1, [Define to 1 if you have the ‘fldln2’ and other floating point instructions.])], + [AC_MSG_RESULT(no)]) + ++CFLAGS="${OLD_CFLAGS}" ++ + AC_CHECK_HEADERS(zlib.h) + AC_CHECK_LIB(z, gzopen, [ZLIB_LIBS="${ZLIB_LIBS} -lz"]) + + diff --git a/media-libs/libcaca/libcaca-0.99_beta19-r11.ebuild b/media-libs/libcaca/libcaca-0.99_beta19-r11.ebuild index 32b14aa901c4..917b1e972fc7 100644 --- a/media-libs/libcaca/libcaca-0.99_beta19-r11.ebuild +++ b/media-libs/libcaca/libcaca-0.99_beta19-r11.ebuild @@ -61,6 +61,7 @@ PATCHES=( "${FILESDIR}/100_doxygen.diff" # Fix doxygen docs install, bug 543870 "${FILESDIR}/fix-css-path.patch" + "${FILESDIR}/configure-lto.patch" ) src_prepare() {
