0002815: implicit declaration of function 'strcasestr' is invalid in C99

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ID	Project	Category	View Status	Date Submitted	Last Update
0002815	Buildsystem	[All Projects] General	public	2021-04-14 16:29	2024-01-02 04:31

Reporter	Ryan Carsten Schmidt
Assigned To
Priority	normal	Severity	minor	Reproducibility	always
Status	new	Resolution	open
Platform	x86_64	OS	macOS	OS Version	10.13.6
Fixed in CI build #
Reported in CI build #

Summary	0002815: implicit declaration of function 'strcasestr' is invalid in C99
Description	Trying to build NetSurf 3.10 on macOS 10.13.6 (with -Werror=implicit-function-declaration in CFLAGS, in order to simulate what happens by default with newer versions of Xcode clang) with the gtk3 target failed as follows: content/handlers/html/css.c:229:7: error: implicit declaration of function 'strcasestr' is invalid in C99 [-Werror,-Wimplicit-function-declaration] In /usr/include/string.h, strcasestr is declared within a conditional: /* Darwin extensions / #if __DARWIN_C_LEVEL >= __DARWIN_C_FULL ... char strcasestr(const char __big, const char __little); I worked around the problem by adding -D_DARWIN_C_SOURCE to CFLAGS, similar to the way that you already use -D_BSD_SOURCE, -D_DEFAULT_SOURCE, and -D_NETBSD_SOURCE in frontends/gtk/Makefile.
Steps To Reproduce	Build NetSurf 3.10 on any version of macOS with -Werror=implicit-function-declaration in CFLAGS.
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