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-rw-r--r--configure.ac43
1 files changed, 27 insertions, 16 deletions
diff --git a/configure.ac b/configure.ac
index 119bd7f..10c01b7 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,4 +1,4 @@
-AC_INIT([libHX], [3.25])
+AC_INIT([libHX], [4.10])
AC_CONFIG_AUX_DIR([build-aux])
AC_CONFIG_HEADERS([config.h])
AC_CONFIG_MACRO_DIR([m4])
@@ -11,9 +11,15 @@ AC_PROG_CXX
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
AC_DISABLE_STATIC
-AC_LIBTOOL_DLOPEN
AM_PROG_LIBTOOL
+saved_CXXFLAGS="$CXXFLAGS"
+regular_CPPFLAGS="-D_FILE_OFFSET_BITS=64 -D_REENTRANT"
+regular_CFLAGS="-Wall -Waggregate-return -Wmissing-declarations \
+ -Wmissing-prototypes -Wredundant-decls -Wshadow -Wstrict-prototypes \
+ -Wformat=2 -pipe $visibility_CFLAGS"
+regular_CXXFLAGS="-Wall -Wno-pointer-arith -Wredundant-decls -pipe \
+ $visibility_CFLAGS"
#
# Check whether there really is a C++ compiler.
# It is not mandatory to compile libHX, but we want to know.
@@ -22,6 +28,21 @@ AC_LANG_PUSH([C++])
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([], [return 0;])],
[ac_cv_cxx=yes], [ac_cv_cxx=no])
+AC_MSG_CHECKING([available C++ standard])
+cxxmode=""
+for i in "c++20" "c++17"; do
+ AS_IF([test "$i" = "c++20" && test -n "$COVERITY"], [continue])
+ CXXFLAGS="$saved_CXXFLAGS -std=$i"
+ AC_COMPILE_IFELSE([AC_LANG_SOURCE([])], [cxxmode="$i"])
+ AS_IF([test -n "$cxxmode"], [break])
+done
+CXXFLAGS="$saved_CXXFLAGS"
+AS_IF([test -n "$cxxmode"], [
+ regular_CXXFLAGS="$regular_CXXFLAGS -std=$cxxmode"
+ AC_MSG_RESULT([$cxxmode])
+], [
+ AC_MSG_RESULT([none])
+])
AC_LANG_POP([C++])
AM_CONDITIONAL([HAVE_CXX], [test "$ac_cv_cxx" = yes])
@@ -44,7 +65,7 @@ CHECK_GCC_FVISIBILITY
AM_CONDITIONAL([WITH_GNU_LD], [test "$with_gnu_ld" = yes])
LIBS_system="$LIBS"
-AC_CHECK_HEADERS([dlfcn.h sys/resource.h])
+AC_CHECK_HEADERS([dlfcn.h sys/resource.h sys/un.h])
AM_CONDITIONAL([HAVE_DLFCN_H], [test "$ac_cv_header_dlfcn_h" = "yes"])
AC_SEARCH_LIBS([dlopen], [dl], [libdl_LIBS="$LIBS"; LIBS="$LIBS_system"])
AC_SUBST([libdl_LIBS])
@@ -103,22 +124,12 @@ AC_CHECK_MEMBERS(
#include <sys/time.h>
#include <time.h>
])
-AC_CHECK_FUNCS([fork execv execvp pipe], [b_proc="1"])
+AC_CHECK_FUNCS([fork execv execvp pipe posix_fadvise])
AC_CHECK_FUNCS([getegid geteuid getpid getppid])
-AM_CONDITIONAL([B_PROC], [test "$b_proc" = 1])
-
-AC_CHECK_PROGS([LYX], [lyx])
-AM_CONDITIONAL([BUILD_DOCS], [test -n "$LYX"])
+AC_CHECK_FUNCS([initgroups setgid])
-regular_CPPFLAGS="-D_FILE_OFFSET_BITS=64 -D_REENTRANT"
-regular_CFLAGS="-Wall -Waggregate-return -Wmissing-declarations \
- -Wmissing-prototypes -Wredundant-decls -Wshadow -Wstrict-prototypes \
- -Wformat=2 -pipe $visibility_CFLAGS"
-regular_CXXFLAGS="-Wall -Wno-pointer-arith -Wredundant-decls -pipe \
- $visibility_CFLAGS";
AC_SUBST([regular_CPPFLAGS])
AC_SUBST([regular_CFLAGS])
AC_SUBST([regular_CXXFLAGS])
-AC_CONFIG_FILES([Makefile assorted/Makefile doc/Makefile src/Makefile
- include/Makefile libHX.pc])
+AC_CONFIG_FILES([Makefile src/Makefile include/Makefile libHX.pc])
AC_OUTPUT