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|
dnl special problem work arounds
AC_DEFUN([AC_NRN_ODDITIES],[
dnl bison exists but it doesnt work
if test -z "$mlh_yacc" ; then
case "$host" in
alpha-cray-unicosmk* )
echo "Setting YACC=yacc since bison once didn't work on this machine at SDSC"
YACC=yacc
;;
esac
fi
dnl parse or lex does not compile
case "$host" in
alpha-cray-unicosmk* )
echo "Touching *.y and *.l since on this machine the distributed"
echo "c files may not compile."
touch `find . -name \*.\[[yl\]] -print`
;;
esac
dnl g++-2.8.1 compiler internal errors
if test -z "$mlh_cxxflag" ; then
if test "$GXX"='yes' ; then
zzz="`$CXX -v 2>&1 | sed -n '2s/ /_/gp'`"
case "$zzz" in
*version_2.8.1 ) dnl -O fails on deck2_6.cpp and xfont.cpp
echo "Compiling several c++ files will fail with an internal error"
echo "because of a g++-2.8.1 optimization bug. Setting CXXFLAGS=-g"
CXXFLAGS=-g
;;
esac
fi
fi
dnl Too many ld warnings
if test -z "$mlh_ldflag" ; then
case "$host_os" in
irix6* )
echo "This machine gives so many ld warnings that it fails. So:"
echo "setting LDFLAGS=-w"
LDFLAGS="$LDFLAGS -w"
;;
darwin6* )
LDFLAGS="$LDFLAGS -Wl,-bind_at_load"
echo "This machine requires LDFLAGS=$LDFLAGS"
;;
esac
fi
dnl Does a signal call need a cast for the handler.
AC_LANG_PUSH([C++])
AC_TRY_LINK([
#include <signal.h>
RETSIGTYPE sighand(int) {}
],[
signal(SIGUSR1, sighand);
return 0;
],[
echo "The signal function does not need a cast for the handler"
],[
AC_TRY_LINK([
#include <signal.h>
RETSIGTYPE sighand(int) {}
],[
signal(SIGUSR1, (RETSIGTYPE(*)(...))sighand);
return 0;
],[
AC_DEFINE(SIGNAL_CAST,RETSIGTYPE(*)(...),[define if RETSIGTYPE(*)(int) is not the prototype for a signal handler])
echo "The signal function needs a cast to RETSIGTYPE(*)(...) for the handler"
],[
echo "The signal function needs an unknown cast for the handler"
echo "Neither RETSIGTYPE (*)(int) or RETSIGTYPE (*)(...) are correct prototypes."
])
])
AC_LANG_POP([])
dnl see src/mac/after_install . Allow safe changing of install_name
case "$host_os" in
darwin*)
LDFLAGS="$LDFLAGS -headerpad_max_install_names"
;;
esac
])dnl end of AC_NRN_ODDITIES
|
