From 5ab8eb3cac0c87c850c800d639004205807faf27 Mon Sep 17 00:00:00 2001 From: Edgar Bonet Date: Fri, 27 Sep 2024 14:09:01 +0200 Subject: [PATCH] package/gnuplot: fix build failures on undefined FE_UNDERFLOW Gnuplot carries the implicit assumption that, if the header fenv.h is available, then it must define FE_UNDERFLOW. This assumption fails on microblaze{,el}, mips{,64}{,el}, nios2 and or1k. Fixes: - https://autobuild.buildroot.org/results/aa177c4f4f7c7429f052cebbf54f7027e4b2cabd/ - https://autobuild.buildroot.org/results/868ca441daa2485b997f307edeede31dd229bfc2/ - https://autobuild.buildroot.org/results/0a152cbfe23703bc5012098864d7fd5608775882/ - https://autobuild.buildroot.org/results/d43be86091c9bd9163c145264151532f0f485528/ Signed-off-by: Edgar Bonet Signed-off-by: Thomas Petazzoni --- .../0002-check-for-defined-FE_UNDERFLOW.patch | 32 +++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 package/gnuplot/0002-check-for-defined-FE_UNDERFLOW.patch diff --git a/package/gnuplot/0002-check-for-defined-FE_UNDERFLOW.patch b/package/gnuplot/0002-check-for-defined-FE_UNDERFLOW.patch new file mode 100644 index 0000000000..e84c72aaed --- /dev/null +++ b/package/gnuplot/0002-check-for-defined-FE_UNDERFLOW.patch @@ -0,0 +1,32 @@ +From 806641b5ef504488f871b5cbd9e5c356d67d0bd1 Mon Sep 17 00:00:00 2001 +From: Edgar Bonet +Date: Tue, 24 Sep 2024 20:03:18 -0700 +Subject: [PATCH] check for defined(FE_UNDERFLOW) + +According to fenv(3), the macro FE_UNDERFLOW is defined by fenv.h only +if the implementation supports handling of the underflow exception. Do +not assume the presence of fenv.h implies FE_UNDERFLOW is defined. + +Signed-off-by: Edgar Bonet +Upstream: https://sourceforge.net/p/gnuplot/gnuplot-main/ci/926d2c26d31f4b69feda372c76a28643ef45359d/ +Upstream: https://sourceforge.net/p/gnuplot/gnuplot-main/ci/806641b5ef504488f871b5cbd9e5c356d67d0bd1/ +--- + src/complexfun.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/src/complexfun.c b/src/complexfun.c +index 7a5d9a13f..7ddb4ed60 100644 +--- a/src/complexfun.c ++++ b/src/complexfun.c +@@ -86,7 +86,7 @@ + int_error(NO_CARET, "%s: error present on entry (errno %d %s)", who, errno, strerror(errno)); + #endif + +-#ifdef HAVE_FENV_H ++#if defined (HAVE_FENV_H) && defined (FE_UNDERFLOW) + #define handle_underflow( who, var ) \ + if (errno) { \ + if (fetestexcept(FE_UNDERFLOW)) { \ +-- +2.34.1 +