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- From 84e62d57b90b41a0c96bb9fb6ec61ecaac76a1ab Mon Sep 17 00:00:00 2001
- From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
- Date: Sat, 5 Nov 2022 21:31:36 +0100
- Subject: [PATCH] configure.ac: fix build on powerpc and m68k
- Fix the following powerpc and m68k build failures on:
- - musl raised because fpu_control.h is not available:
- In file included from fp.c:8:
- fp-gnuppc.c:21:10: fatal error: fpu_control.h: No such file or directory
- 21 | #include <fpu_control.h>
- | ^~~~~~~~~~~~~~~
- - glibc raised because _FPU_RC_NEAREST is undefined if _SOFT_FLOAT is
- set:
- In file included from fp.c:8:
- fp-gnuppc.c: In function 'gsl_ieee_set_mode':
- fp-gnuppc.c:53:15: error: '_FPU_RC_NEAREST' undeclared (first use in this function)
- 53 | mode |= _FPU_RC_NEAREST ;
- | ^~~~~~~~~~~~~~~
- Fixes:
- - http://autobuild.buildroot.org/results/d73e116c81bf16d2e55fced215d6bd3b382fef10
- - http://autobuild.buildroot.org/results/48403946bb4cda9013e51db59c1b2ffdcf4e2854
- Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
- Upstream: https://lists.gnu.org/archive/html/bug-gsl/2022-11/msg00000.html
- ---
- configure.ac | 8 ++++++++
- 1 file changed, 8 insertions(+)
- diff --git a/configure.ac b/configure.ac
- index bfd9ca30..1ee6dca0 100644
- --- a/configure.ac
- +++ b/configure.ac
- @@ -389,6 +389,14 @@ if test "$ac_cv_c_ieee_interface" = "gnux86" ; then
- fi
- fi
-
- +if test "$ac_cv_c_ieee_interface" = "gnuppc" -o "$ac_cv_c_ieee_interface" = "gnum68k" ; then
- + AC_CACHE_CHECK([for _FPU_RC_NEAREST], ac_cv_c__fpu_rc_nearest,
- + [ac_cv_c__fpu_rc_nearest=no
- + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <fpu_control.h>
- +]], [[ unsigned short mode = _FPU_RC_NEAREST ; ]])],[ac_cv_c__fpu_rc_nearest="yes"],[ac_cv_c_ieee_interface=unknown])
- + ])
- +fi
- +
- ac_tr_ieee_interface=HAVE_`echo $ac_cv_c_ieee_interface | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`_IEEE_INTERFACE
- AC_DEFINE_UNQUOTED($ac_tr_ieee_interface,1,[IEEE Interface Type])
-
- --
- 2.35.1
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