twf

[korobi@lenovo-arch twf-0.4]$ make
make  all-recursive
make[1]: Entering directory '/home/korobi/Downloads/twf-0.4'
Making all in src
make[2]: Entering directory '/home/korobi/Downloads/twf-0.4/src'
if gcc -DHAVE_CONFIG_H -I. -I. -I.. -DPACKAGE_DATA_DIR=\""/usr/local/share"\" -DPACKAGE_LOCALE_DIR=\""/usr/local/share/locale"\" -DTWF_DATA=\""/usr/local/share/twf"\" -pthread -I/usr/include/libglade-2.0 -I/usr/include/gtk-2.0 -I/usr/lib/gtk-2.0/include -I/usr/include/pango-1.0 -I/usr/include/atk-1.0 -I/usr/include/cairo -I/usr/include/pixman-1 -I/usr/include/libdrm -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/libpng16 -I/usr/include/pango-1.0 -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/harfbuzz -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/include/libxml2   -rdynamic -g -O2 -MT themes.o -MD -MP -MF ".deps/themes.Tpo" -c -o themes.o themes.c; \
then mv -f ".deps/themes.Tpo" ".deps/themes.Po"; else rm -f ".deps/themes.Tpo"; exit 1; fi
themes.c: In function ‘get_themes’:
themes.c:50:20: warning: implicit declaration of function ‘getenv’ [-Wimplicit-function-declaration]
  homedir = (gchar*)getenv ("HOME");
                    ^
themes.c:50:12: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
  homedir = (gchar*)getenv ("HOME");
            ^
themes.c:62:8: warning: implicit declaration of function ‘strcmp’ [-Wimplicit-function-declaration]
    if (strcmp(dent->d_name,"." ) == 0) continue;
        ^
themes.c:71:66: error: ‘strcmp’ undeclared (first use in this function)
    list = g_list_insert_sorted(list, dent->d_name, (GCompareFunc)strcmp);
                                                                  ^
themes.c:71:66: note: each undeclared identifier is reported only once for each function it appears in
Makefile:299: recipe for target 'themes.o' failed
make[2]: *** [themes.o] Error 1
make[2]: Leaving directory '/home/korobi/Downloads/twf-0.4/src'
Makefile:277: recipe for target 'all-recursive' failed
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory '/home/korobi/Downloads/twf-0.4'
Makefile:206: recipe for target 'all' failed
make: *** [all] Error 2
[korobi@lenovo-arch twf-0.4]$