35 строки
681 B
Bash
35 строки
681 B
Bash
dnl -*- shell-script -*-
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dnl
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dnl $HEADER$
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dnl
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define([LAM_C_WEAK_SYMBOLS],[
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#
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# Arguments: None
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#
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# Depdencies: None
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#
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# Check to see if the C compiler can handle weak symbols
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#
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# Sets LAM_C_WEAK_SYMBOLS=1 if the C compiler has support for weak
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# symbols.
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#
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AC_MSG_CHECKING([for weak symbols])
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AC_LINK_IFELSE(AC_LANG_SOURCE([[#pragma weak fake = real
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extern int fake(int i);
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int real(int i);
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int real(int i) { return i; }
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int main(int argc, char* argv[]) {
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return fake(3);
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}]]), lam_happy=1, lam_happy=0)
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if test "$lam_happy" = "1"; then
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AC_MSG_RESULT([yes])
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LAM_C_HAVE_WEAK_SYMBOLS=1
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else
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AC_MSG_RESULT([no])
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LAM_C_HAVE_WEAK_SYMBOLS=0
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fi
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unset lam_happy])dnl
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