Hi, here are two macros which can be useful to check for an installed OCaml library:
AC_DEFUN([AC_OCAML_CHECK_LIB], [AC_MSG_CHECKING(for $2 (bytecode)); \ if $OCAMLC -o foo.exe $COMPFLAGS $2.cma 2> /dev/null || $OCAMLC -o foo.exe $COMPFLAGS $2.cmo 2>/dev/null; then\ AC_MSG_RESULT yes; $1=$3 ;\ else AC_MSG_RESULT no; $1=$4;\ fi ]) AC_DEFUN([AC_OCAML_CHECK_LIBOPT], [AC_MSG_CHECKING(for $2 (native)); \ if $OCAMLOPT -o foo.exe $COMPFLAGS $2.cmxa 2> /dev/null || $OCAMLOPT -o foo.exe $COMPFLAGS $2.cmx 2>/dev/null; then\ AC_MSG_RESULT yes; $1=$3 ;\ else AC_MSG_RESULT no; $1=$4;\ fi ]) They can be used this way: AC_OCAML_CHECK(variable,libname,value-if-installed,value-if-not-installed) And an example of usage: AC_OCAML_CHECK_LIB(CRYPTOKIT,cryptokit,yes,no) AC_OCAML_CHECK_LIBOPT(CRYPTOKITOPT,cryptokit,yes,no) if test "$CRYPTOKIT" = no ; then ... This is just a first attempt for this kind of macros. I'm not familiar with M4 macros. Friendly, Maxence
