<div dir="ltr">You actually need to include stdbool.h: <pre class="">#include <<code class="">stdbool.h</code>> #include <stdlib.h> #include <<code class="">jemalloc/jemalloc.h</code>></pre> </div><div class="gmail_extra"> <div class="gmail_quote">On Wed, Sep 24, 2014 at 1:26 AM, Matthew Hall <<a href="mailto:mhall@mhcomputing.net" target="_blank">mhall@mhcomputing.net</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hello, I'm seeing the following error using this jemalloc version in a client app. I'm suspecting the code was supposed to include the header stdbool.h but did not do so? I grepped for this header but I did not see it included in the base jemalloc header. I did see it included in jemalloc_internal_decls.h but jemalloc.h only includes limits.h and strings.h. Matthew. /usr/local/jemalloc/include/jemalloc/jemalloc.h:155:47: error: unknown type name 'bool' typedef void *(chunk_alloc_t)(size_t, size_t, bool *, unsigned); ^ /usr/local/jemalloc/include/jemalloc/jemalloc.h:156:9: warning: type specifier missing, defaults to 'int' [-Wimplicit-int] typedef bool (chunk_dalloc_t)(void *, size_t, unsigned); ~~~~~~ ^ /usr/local/jemalloc/include/jemalloc/jemalloc.h:156:14: error: function cannot return function type 'int (void *, size_t, unsigned int)' typedef bool (chunk_dalloc_t)(void *, size_t, unsigned); ^ /usr/local/jemalloc/include/jemalloc/jemalloc.h:156:15: error: a parameter list without types is only allowed in a function definition typedef bool (chunk_dalloc_t)(void *, size_t, unsigned); _______________________________________________ jemalloc-discuss mailing list <a href="mailto:jemalloc-discuss@canonware.com">jemalloc-discuss@canonware.com</a> <a href="http://www.canonware.com/mailman/listinfo/jemalloc-discuss" target="_blank">http://www.canonware.com/mailman/listinfo/jemalloc-discuss</a> </blockquote></div> </div>