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diff --git a/jni/iconv/m4/general.m4 b/jni/iconv/m4/general.m4
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--- a/jni/iconv/m4/general.m4
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-dnl Copyright (C) 1993-2003 Free Software Foundation, Inc.
-dnl This file is free software, distributed under the terms of the GNU
-dnl General Public License. As a special exception to the GNU General
-dnl Public License, this file may be distributed as part of a program
-dnl that contains a configuration script generated by Autoconf, under
-dnl the same distribution terms as the rest of that program.
-
-dnl From Bruno Haible, Marcus Daniels, Sam Steingold.
-
-AC_PREREQ(2.13)
-
-dnl without AC_MSG_...: with AC_MSG_... and caching:
-dnl AC_TRY_CPP CL_CPP_CHECK
-dnl AC_TRY_COMPILE CL_COMPILE_CHECK
-dnl AC_TRY_LINK CL_LINK_CHECK
-dnl AC_TRY_RUN CL_RUN_CHECK - would require cross-compiling support
-dnl Usage:
-dnl AC_TRY_CPP(INCLUDES,
-dnl ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND])
-dnl CL_CPP_CHECK(ECHO-TEXT, CACHE-ID,
-dnl INCLUDES,
-dnl ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND])
-dnl AC_TRY_xxx(INCLUDES, FUNCTION-BODY,
-dnl ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND])
-dnl CL_xxx_CHECK(ECHO-TEXT, CACHE-ID,
-dnl INCLUDES, FUNCTION-BODY,
-dnl ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND])
-
-AC_DEFUN([CL_CPP_CHECK],
-[AC_MSG_CHECKING(for $1)
-AC_CACHE_VAL($2,[
-AC_TRY_CPP([$3], $2=yes, $2=no)
-])
-AC_MSG_RESULT([$]$2)
-if test [$]$2 = yes; then
- ifelse([$4], , :, [$4])
-ifelse([$5], , , [else
- $5
-])dnl
-fi
-])
-
-AC_DEFUN([CL_COMPILE_CHECK],
-[AC_MSG_CHECKING(for $1)
-AC_CACHE_VAL($2,[
-AC_TRY_COMPILE([$3],[$4], $2=yes, $2=no)
-])
-AC_MSG_RESULT([$]$2)
-if test [$]$2 = yes; then
- ifelse([$5], , :, [$5])
-ifelse([$6], , , [else
- $6
-])dnl
-fi
-])
-
-AC_DEFUN([CL_LINK_CHECK],
-[AC_MSG_CHECKING(for $1)
-AC_CACHE_VAL($2,[
-AC_TRY_LINK([$3],[$4], $2=yes, $2=no)
-])
-AC_MSG_RESULT([$]$2)
-if test [$]$2 = yes; then
- ifelse([$5], , :, [$5])
-ifelse([$6], , , [else
- $6
-])dnl
-fi
-])
-
-dnl CL_SILENT(ACTION)
-dnl performs ACTION, with AC_MSG_CHECKING and AC_MSG_RESULT being defined away.
-AC_DEFUN([CL_SILENT],
-[pushdef([AC_MSG_CHECKING],[:])dnl
-pushdef([AC_CHECKING],[:])dnl
-pushdef([AC_MSG_RESULT],[:])dnl
-$1[]dnl
-popdef([AC_MSG_RESULT])dnl
-popdef([AC_CHECKING])dnl
-popdef([AC_MSG_CHECKING])dnl
-])
-
-dnl Expands to the "extern ..." prefix used for system declarations.
-dnl AC_LANG_EXTERN()
-AC_DEFUN([AC_LANG_EXTERN],
-[extern
-#ifdef __cplusplus
-"C"
-#endif
-])
-
-AC_DEFUN([CL_CC_WORKS],
-[AC_CACHE_CHECK(whether CC works at all, cl_cv_prog_cc_works, [
-AC_LANG_SAVE()
-AC_LANG_C()
-AC_TRY_RUN([int main() { exit(0); }],
-cl_cv_prog_cc_works=yes, cl_cv_prog_cc_works=no,
-AC_TRY_LINK([], [], cl_cv_prog_cc_works=yes, cl_cv_prog_cc_works=no))
-AC_LANG_RESTORE()
-])
-case "$cl_cv_prog_cc_works" in
- *no) echo "Installation or configuration problem: C compiler cannot create executables."; exit 1;;
- *yes) ;;
-esac
-])