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Check if memmem is declared in system headers.

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If the system (or one of the dependencies) implements memmem but does
not define the header, we would not declare it either resulting in
compiler warnings.  Check for declaration explicitly.  bz#3102.
This commit is contained in:
Darren Tucker 2019-12-11 13:22:06 +11:00
parent ad8cd42079
commit afffd31036
2 changed files with 2 additions and 2 deletions
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2
configure.ac
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@ -1873,7 +1873,7 @@ AC_CHECK_FUNCS([ \
warn \
])
AC_CHECK_DECLS([bzero])
AC_CHECK_DECLS([bzero, memmem])
dnl Wide character support.
AC_CHECK_FUNCS([mblen mbtowc nl_langinfo wcwidth])

2
openbsd-compat/openbsd-compat.h
View File

@ -74,7 +74,7 @@ int getpagesize(void);
char *getcwd(char *pt, size_t size);
#endif
#ifndef HAVE_MEMMEM
#if defined(HAVE_DECL_MEMMEM) && HAVE_DECL_MEMMEM == 0
void *memmem(const void *, size_t, const void *, size_t);
#endif