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-rw-r--r--meta/recipes-extended/groff/files/0001-support-musl.patch41
1 files changed, 41 insertions, 0 deletions
diff --git a/meta/recipes-extended/groff/files/0001-support-musl.patch b/meta/recipes-extended/groff/files/0001-support-musl.patch
new file mode 100644
index 0000000000..a837b11b1b
--- /dev/null
+++ b/meta/recipes-extended/groff/files/0001-support-musl.patch
@@ -0,0 +1,41 @@
+From 695965c27be74acb5968f19d51af86065c4b71a9 Mon Sep 17 00:00:00 2001
+From: Hongxu Jia <hongxu.jia@windriver.com>
+Date: Mon, 13 May 2019 09:48:14 +0800
+Subject: [PATCH] support musl
+
+...
+|./lib/math.h:2877:1: error: 'int signbit(float)' conflicts with a previous declaration
+| _GL_MATH_CXX_REAL_FLOATING_DECL_2 (signbit)
+| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+|In file included from recipe-sysroot/usr/include/c++/8.3.0/math.h:36,
+| from ./lib/math.h:27,
+| from ./src/include/driver.h:27,
+| from src/devices/grodvi/dvi.cpp:20:
+|recipe-sysroot/usr/include/c++/8.3.0/cmath:661:3: note: previous declaration 'constexpr bool std::signbit(float)'
+| signbit(float __x)
+| ^~~~~~~
+...
+
+Upstream-Status: Backport [http://git.savannah.gnu.org/gitweb/?p=gnulib.git;a=commit;h=453ff940449bbbde9ec00f0bbf82a359c5598fc7]
+
+Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
+---
+ gnulib_m4/signbit.m4 | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/gnulib_m4/signbit.m4 b/gnulib_m4/signbit.m4
+index 9e7884d..8b9c70c 100644
+--- a/gnulib_m4/signbit.m4
++++ b/gnulib_m4/signbit.m4
+@@ -31,6 +31,8 @@ AC_DEFUN([gl_SIGNBIT],
+ [case "$host_os" in
+ # Guess yes on glibc systems.
+ *-gnu* | gnu*) gl_cv_func_signbit="guessing yes" ;;
++ # Guess yes on musl systems.
++ *-musl*) gl_cv_func_signbit="guessing yes" ;;
+ # Guess yes on native Windows.
+ mingw*) gl_cv_func_signbit="guessing yes" ;;
+ # If we don't know, assume the worst.
+--
+2.7.4
+