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61 lines
1.5 KiB
Plaintext
61 lines
1.5 KiB
Plaintext
#serial 2
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AC_DEFUN(jm_CHECK_DECLARATION,
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[
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AC_REQUIRE([AC_HEADER_STDC])dnl
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test -z "$ac_cv_header_memory_h" && AC_CHECK_HEADERS(memory.h)
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test -z "$ac_cv_header_string_h" && AC_CHECK_HEADERS(string.h)
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test -z "$ac_cv_header_strings_h" && AC_CHECK_HEADERS(strings.h)
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test -z "$ac_cv_header_stdlib_h" && AC_CHECK_HEADERS(stdlib.h)
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test -z "$ac_cv_header_unistd_h" && AC_CHECK_HEADERS(unistd.h)
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AC_MSG_CHECKING([whether $1 is declared])
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AC_CACHE_VAL(jm_cv_func_decl_$1,
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[AC_TRY_COMPILE([
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#include <stdio.h>
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#ifdef HAVE_STRING_H
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# if !STDC_HEADERS && HAVE_MEMORY_H
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# include <memory.h>
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# endif
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# include <string.h>
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#else
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# ifdef HAVE_STRINGS_H
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# include <strings.h>
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# endif
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#endif
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#ifdef HAVE_STDLIB_H
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# include <stdlib.h>
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#endif
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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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#endif],
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[
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#ifndef $1
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char *(*pfn) = (char *(*)) $1
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#endif
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],
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eval "jm_cv_func_decl_$1=yes",
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eval "jm_cv_func_decl_$1=no")])
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if eval "test \"`echo '$jm_cv_func_decl_'$1`\" = yes"; then
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AC_MSG_RESULT(yes)
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ifelse([$2], , :, [$2])
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else
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AC_MSG_RESULT(no)
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ifelse([$3], , , [$3
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])dnl
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fi
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])dnl
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dnl jm_CHECK_DECLARATIONS(FUNCTION... [, ACTION-IF-DECLARED
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dnl [, ACTION-IF-NOT-DECLARED]])
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AC_DEFUN(jm_CHECK_DECLARATIONS,
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[
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for jm_func in $1
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do
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jm_CHECK_DECLARATION($jm_func,
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[
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jm_tr_func=HAVE_DECL_`echo $jm_func | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`
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AC_DEFINE_UNQUOTED($jm_tr_func) $2], $3)dnl
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done
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])
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