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|
dnl Check for PCRE Libraries
dnl CHECK_PCRE(ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND])
dnl Sets:
dnl PCRE_CFLAGS
dnl PCRE_LIBS
PCRE_CONFIG=""
PCRE_VERSION=""
PCRE_CPPFLAGS=""
PCRE_CFLAGS=""
PCRE_LDFLAGS=""
PCRE_LDADD=""
PCRE_LD_PATH=""
AC_DEFUN([CHECK_PCRE],
[dnl
AC_ARG_WITH(
pcre,
[AS_HELP_STRING([--with-pcre=PATH],[Path to pcre prefix or config script])],
[test_paths="${with_pcre}"],
[test_paths="/usr/local/libpcre /usr/local/pcre /usr/local /opt/libpcre /opt/pcre /opt /usr /opt/local"])
if test "x${with_pcre2}" != "x" && test "x${with_pcre2}" != "xno"; then
AC_MSG_NOTICE([pcre2 specified; omitting check for pcre])
else
AC_MSG_CHECKING([for libpcre config script])
AC_CHECK_PROG([PCRE_CONFIG_IN_ENV], [pcre-config], [yes], [no])
if test "$PCRE_CONFIG_IN_ENV" = "yes"; then
AC_MSG_NOTICE([pcre-config found in envinronment])
PCRE_CONFIG=pcre-config
pcre_path="no"
else
AC_MSG_NOTICE([pcre-config not found in environment. checking known paths])
for x in ${test_paths}; do
dnl # Determine if the script was specified and use it directly
if test ! -d "$x" -a -e "$x"; then
PCRE_CONFIG=$x
pcre_path="no"
break
fi
dnl # Try known config script names/locations
for PCRE_CONFIG in pcre-config; do
if test -e "${x}/bin/${PCRE_CONFIG}"; then
pcre_path="${x}/bin"
break
elif test -e "${x}/${PCRE_CONFIG}"; then
pcre_path="${x}"
break
else
pcre_path=""
fi
done
if test -n "$pcre_path"; then
break
fi
done
fi
if test -n "${pcre_path}"; then
if test "${pcre_path}" != "no"; then
PCRE_CONFIG="${pcre_path}/${PCRE_CONFIG}"
fi
AC_MSG_RESULT([${PCRE_CONFIG}])
PCRE_VERSION="`${PCRE_CONFIG} --version`"
if test ! -z "${PCRE_VERSION}"; then AC_MSG_NOTICE(pcre VERSION: $PCRE_VERSION); fi
PCRE_CFLAGS="`${PCRE_CONFIG} --cflags`"
if test ! -z "${PCRE_CFLAGS}"; then AC_MSG_NOTICE(pcre CFLAGS: $PCRE_CFLAGS); fi
PCRE_LDADD="`${PCRE_CONFIG} --libs`"
if test ! -z "${PCRE_LDADD}"; then AC_MSG_NOTICE(pcre LDADD: $PCRE_LDADD); fi
PCRE_LD_PATH="/`${PCRE_CONFIG} --libs | cut -d'/' -f2,3,4,5,6 | cut -d ' ' -f1`"
if test ! -z "${PCRE_LD_PATH}"; then AC_MSG_NOTICE(pcre PCRE_LD_PATH: $PCRE_LD_PATH); fi
else
AC_MSG_RESULT([no])
fi
if test -n "${PCRE_VERSION}"; then
AC_MSG_CHECKING(for PCRE JIT)
save_CFLAGS=$CFLAGS
save_LDFLAGS=$LDFLAGS
save_LIBS=$LIBS
CFLAGS="${PCRE_CFLAGS} ${CFLAGS}"
LDFLAGS="${PCRE_LDADD} ${LDFLAGS}"
LIBS="${PCRE_LDADD} ${LIBS}"
AC_LINK_IFELSE(
[AC_LANG_PROGRAM([[ #include <pcre.h> ]],
[[ pcre_jit_exec(NULL, NULL, NULL, 0, 0, 0, NULL, 0, NULL); ]])],
[ pcre_jit_available=yes ],
[:]
)
if test "x$pcre_jit_available" = "xyes"; then
AC_MSG_RESULT(yes)
PCRE_CFLAGS="${PCRE_CFLAGS} -DPCRE_HAVE_JIT"
else
AC_MSG_RESULT(no)
fi
CFLAGS=$save_CFLAGS
LDFLAGS=$save_LDFLAGS
LIBS=$save_LIBS
fi
AC_SUBST(PCRE_CONFIG)
AC_SUBST(PCRE_VERSION)
AC_SUBST(PCRE_CPPFLAGS)
AC_SUBST(PCRE_CFLAGS)
AC_SUBST(PCRE_LDFLAGS)
AC_SUBST(PCRE_LDADD)
AC_SUBST(PCRE_LD_PATH)
if test -z "${PCRE_VERSION}"; then
AC_MSG_NOTICE([*** pcre library not found.])
ifelse([$2], , AC_MSG_ERROR([pcre library is required]), $2)
else
AC_MSG_NOTICE([using pcre v${PCRE_VERSION}])
ifelse([$1], , , $1)
PCRE_LDADD="${PCRE_LDADD} -lpcre"
fi
fi
])
|
