Re: new module 'fenv-exceptions-state-c99'

[Bruno Haible]

This patch fixes a compilation error on FreeBSD, when I use

  gl_cv_func_fesetexceptflag_in_libm=no \
  gl_cv_func_fesetexceptflag_no_libm=no \
  ./configure

for testing the override code.


2023-11-04  Bruno Haible  <bruno@clisp.org>

        fenv-exceptions-state-c99: Fix compilation error on FreeBSD.
        * lib/fenv.in.h (fegetexceptflag, fesetexceptflag): On FreeBSD, use an
        rpl_ prefix, to avoid a conflict with an inline definition in FreeBSD's
        <fenv.h>.

diff --git a/lib/fenv.in.h b/lib/fenv.in.h
index 4fd5ea2f1a..b1c52d6e27 100644
--- a/lib/fenv.in.h
+++ b/lib/fenv.in.h
@@ -708,7 +708,7 @@ typedef unsigned long fexcept_t;
 #if @GNULIB_FEGETEXCEPTFLAG@
 /* Stores the current floating-point exception status flags denoted
    by EXCEPTIONS in *SAVED_FLAGS.  */
-# if @REPLACE_FEGETEXCEPTFLAG@
+# if @REPLACE_FEGETEXCEPTFLAG@ || (!@HAVE_FEGETEXCEPTFLAG@ && defined 
__FreeBSD__) /* has an inline definition */
 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 #   undef fegetexceptflag
 #   define fegetexceptflag rpl_fegetexceptflag
@@ -731,7 +731,7 @@ _GL_CXXALIASWARN (fegetexceptflag);
 #if @GNULIB_FESETEXCEPTFLAG@
 /* Copies the flags denoted by EXCEPTIONS from *SAVED_FLAGS to the
    floating-point exception status flags.  */
-# if @REPLACE_FESETEXCEPTFLAG@
+# if @REPLACE_FESETEXCEPTFLAG@ || (!@HAVE_FESETEXCEPTFLAG@ && defined 
__FreeBSD__) /* has an inline definition */
 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 #   undef fesetexceptflag
 #   define fesetexceptflag rpl_fesetexceptflag