Merge pull request #483 from chief1983/fix/292_unused_functions

Wrap some unused functions in a diagnostic protection pragma

Author: Goober5000

code/math/fvi.cpp

@@ -18,7 +18,7 @@
 #define	UNINITIALIZED_VALUE	-1234567.8f
 #define WARN_DIST	1.0
 
-static void accurate_square_root( float A, float B, float C, float discriminant, float *root1, float *root2 );
+static void accurate_square_root( float A, float B, float C, float discriminant, float *root1, float *root2 ) __UNUSED;
 
 static float matrix_determinant_from_vectors(const vec3d *v1, const vec3d *v2, const vec3d *v3)
 {

code/math/vecmat.cpp

@@ -29,6 +29,8 @@ matrix vmd_identity_matrix = IDENTITY_MATRIX;
 
 #define	UNINITIALIZED_VALUE	-12345678.9f
 
+static void rotate_z ( matrix *m, float theta ) __UNUSED;
+
 bool vm_vec_equal(const vec4 &self, const vec4 &other)
 {
 	return fl_equal(self.a1d[0], other.a1d[0]) && fl_equal(self.a1d[1], other.a1d[1]) && fl_equal(self.a1d[2], other.a1d[2]) && fl_equal(self.a1d[3], other.a1d[3]);

configure.ac

@@ -263,7 +263,7 @@ fi
 
 if test "$fs2_debug" = "yes" ; then
 	AC_DEFINE([_DEBUG])
-	D_CFLAGS="$D_CFLAGS -O0 -g -Wall -Wextra -Wno-unused-parameter -Wno-unused-function -Wno-write-strings -Wshadow -funroll-loops"
+	D_CFLAGS="$D_CFLAGS -O0 -g -Wall -Wextra -Wno-unused-parameter -Wno-write-strings -Wshadow -funroll-loops"
 	D_LDFLAGS="$D_LDFLAGS -g"
 
 	if test "$fs2_fred" = "yes" ; then
@@ -274,7 +274,7 @@ if test "$fs2_debug" = "yes" ; then
 else
 	AC_DEFINE([NDEBUG])
 	D_CFLAGS="$D_CFLAGS -O2 -Wall -funroll-loops"
-	D_CFLAGS="$D_CFLAGS -Wno-unused-function -Wno-write-strings -Wno-unused-variable"
+	D_CFLAGS="$D_CFLAGS -Wno-write-strings -Wno-unused-variable"
 
 	AC_C_COMPILE_FLAGS([-Wno-unused-but-set-variable])