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Detect FreeBSD

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FreeBSD requires __BSD_VISIBLE to be set to expose M_PI and mkstemp() in the
system includes. This is normally set when _ANSI_SOURCE, _C99_SOURCE, or
_C11_SOURCE are undefined. I don't want to dig into what the compiler is
setting, so I'm just setting it in the configure script.

/bin/sh ./libtool  --tag=CC   --mode=compile cc -DHAVE_CONFIG_H -I.    -fPIC -fvisibility=hidden -pedantic -fno-exceptions -D PATH_ESPEAK_DATA=\"/usr/local/share/espeak-ng-data\" -DLIBESPEAK_NG_EXPORT  -Isrc/include -Isrc/include/compat -I src/ucd-tools/src/include -D_BSD_SOURCE -D_DEFAULT_SOURCE -D_POSIX_C_SOURCE=200112L -Wno-endif-labels    -g -O2 -std=c99 -MT src/libespeak-ng/src_libespeak_ng_la-wavegen.lo -MD -MP -MF src/libespeak-ng/.deps/src_libespeak_ng_la-wavegen.Tpo -c -o src/libespeak-ng/src_libespeak_ng_la-wavegen.lo `test -f 'src/libespeak-ng/wavegen.c' || echo './'`src/libespeak-ng/wavegen.c
libtool: compile:  cc -DHAVE_CONFIG_H -I. -fPIC -fvisibility=hidden -pedantic -fno-exceptions -D PATH_ESPEAK_DATA=\"/usr/local/share/espeak-ng-data\" -DLIBESPEAK_NG_EXPORT -Isrc/include -Isrc/include/compat -I src/ucd-tools/src/include -D_BSD_SOURCE -D_DEFAULT_SOURCE -D_POSIX_C_SOURCE=200112L -Wno-endif-labels -g -O2 -std=c99 -MT src/libespeak-ng/src_libespeak_ng_la-wavegen.lo -MD -MP -MF src/libespeak-ng/.deps/src_libespeak_ng_la-wavegen.Tpo -c src/libespeak-ng/wavegen.c  -fPIC -DPIC -o src/libespeak-ng/.libs/src_libespeak_ng_la-wavegen.o
src/libespeak-ng/wavegen.c:355:24: error: use of undeclared identifier 'M_PI'
                        x = 127*(1.0 - cos((M_PI*2)*ix/wavemult_max));
                                            ^
src/libespeak-ng/wavegen.c:623:16: error: use of undeclared identifier 'M_PI'
        minus_pi_t = -M_PI / samplerate;
                      ^
2 errors generated.
gmake[1]: *** [Makefile:1690: src/libespeak-ng/src_libespeak_ng_la-wavegen.lo] Error 1
This commit is contained in:
Anthony Cornehl
2017-08-31 17:42:17 -07:00
parent 830bed1cb1
commit 06c87ae25b
1 changed files with 17 additions and 0 deletions
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configure.ac
+17
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@@ -83,6 +83,23 @@ else
AC_MSG_ERROR([C99 is not supported by $CC.])
fi
dnl ================================================================
dnl FreeBSD check.
dnl ================================================================
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
#if ! defined(__FreeBSD__)
#error macro not defined
#endif
]])], [FREEBSD_FOUND="yes"], [FREEBSD_FOUND="no"])
AC_MSG_CHECKING([if targeting FreeBSD])
if test "$FREEBSD_FOUND" = "yes" ; then
AC_MSG_RESULT([-D__BSD_VISIBLE])
CFLAGS="$CFLAGS -D__BSD_VISIBLE"
else
AC_MSG_RESULT([no])
fi
dnl ================================================================
dnl library checks.
dnl ================================================================