autoconfiscated

m4/.gitignore

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+libtool.m4
+ltoptions.m4
+ltsugar.m4
+ltversion.m4
+lt~obsolete.m4

m4/ax_let.m4

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+#serial 1
+# Author: Michael Weber <michaelw@cs.utwente.nl>
+#
+# SYNOPSIS
+#
+#   AX_LET(VAR1, EXPR1,
+#          [VAR2, EXPR2,]...
+#     BODY)
+#
+m4_define([AX_LET_counter_],0)
+m4_define([AX_LET_AUX], [dnl
+m4_if([$#], 2, [$1
+$2], [dnl
+ax_let_$2_[]AX_LET_counter_[]_tmp_=$3
+AX_LET_AUX([m4_if([$1],[],[],[$1
+])dnl
+ax_let_$2_[]AX_LET_counter_="[$]$2"
+$2="[$]ax_let_$2_[]AX_LET_counter_[]_tmp_"], m4_shiftn(3,$@))
+$2="[$]ax_let_$2_[]AX_LET_counter_"])])dnl
+
+AC_DEFUN([AX_LET],
+[m4_define([AX_LET_counter_], m4_incr(AX_LET_counter_))dnl
+# AX_LET
+AX_LET_AUX([],$@)])

m4/ax_try_cflags_ifelse.m4

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+#serial 1
+# Author: Michael Weber <michaelw@cs.utwente.nl>
+#
+# SYNOPSIS
+#
+#   AX_TRY_CFLAGS_IFELSE(VAR, FLAGS...[, ACTION-IF-TRUE[, ACTION-IF-FALSE]])
+#
+AC_DEFUN([AX_TRY_CFLAGS_IFELSE],
+[AX_LET([CFLAGS],["$CFLAGS $1"],
+   [AC_MSG_CHECKING([whether compiler accepts $1])
+    AC_LANG_PUSH(C)
+    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[return 0;])],
+      [ax_try_cflags_ifelse_res=yes],
+      [ax_try_cflags_ifelse_res=no])])
+    AC_LANG_POP(C)
+ AC_MSG_RESULT([$ax_try_cflags_ifelse_res])
+ AS_IF([test x"$ax_try_cflags_ifelse_res" = xyes],
+   [ifelse([$2],,
+      [AC_SUBST(CFLAGS, ["$CFLAGS $1"])],
+      [$2])
+    :]
+   [$3
+    :])
+])
+
+# SYNOPSIS
+#
+#   AX_TRY_CXXFLAGS_IFELSE(VAR, FLAGS...[, ACTION-IF-TRUE[, ACTION-IF-FALSE]])
+#
+AC_DEFUN([AX_TRY_CXXFLAGS_IFELSE],
+[AX_LET([CXXFLAGS],["$CXXFLAGS $1"],
+   [AC_MSG_CHECKING([whether compiler accepts $1])
+    AC_LANG_PUSH(C++)
+    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],[return 0;])],
+      [ax_try_cflags_ifelse_res=yes],
+      [ax_try_cflags_ifelse_res=no])
+    AC_LANG_POP(C++)])
+ AC_MSG_RESULT([$ax_try_cflags_ifelse_res])
+ AS_IF([test x"$ax_try_cflags_ifelse_res" = xyes],
+   [ifelse([$2],,
+      [AC_SUBST(CXXFLAGS, ["$CXXFLAGS $1"])],
+      [$2])
+    :]
+   [$3
+    :])
+])