pidgin/pidgin

Use LT_LIB_M to determine if we need to link to the math library and link Pidgin to the X11 libraries
release-2.x.y
2021-04-11, Gary Kramlich
132d17234930
Use LT_LIB_M to determine if we need to link to the math library and link Pidgin to the X11 libraries

Gentoo ran into an issue with the gold linker without -lm. The original patch
and work came from Justin Lechner. https://bugs.gentoo.org/386079

Gentoo also ran into an issue with X11_LIBS not being added to pidgin. This
should already be implicit everywhere except for homebrew which patches X11
out of their build. Original patch/work came from and. https://bugs.gentoo.org/500762

Testing Done:
Installed and ran locally.

Reviewed at https://reviews.imfreedom.org/r/608/
#ifndef __FACE_H__
#define __FACE_H__
#include <GL/gl.h>
#include <GL/glu.h>
#include "glm.h"
#define NUM_PARTS 10
#define DOG_SHARK_CHANGE 5
#define CRAZY_COUNT 12
#define MAX_EYE_POP 1.3
#define EYE_TIME 120
#define MAX_FILE_LEN 64
#define ANGLE_INC 60
typedef enum {DOG, SHARK} KIND;
typedef int BOOL;
typedef enum {UP, DOWN, CONST} DIRECTION;
typedef enum {NORMAL, CRAZY1, CRAZY2, CRAZY3} OUTPUT_MODE;
struct face_struct {
char* name;
KIND my_kind;
void* char_struct;
GLint* mat_indeces;
GLMmat_str* materials;
OUTPUT_MODE my_mode;
int eye_count, crazy_count;
void (*draw_func)(struct face_struct*, GLfloat, GLfloat, BOOL, BOOL, GLfloat, DIRECTION, OUTPUT_MODE);
float curr_z_angle, curr_eye_pop;
};
typedef struct face_struct* FACE;
typedef enum {APPENDAGE, HEAD, LIDS, LEFT_IRIS, RIGHT_IRIS, EYES, PUPIL, EXTRA1, EXTRA2, EXTRA3} PART;
FACE init_face(KIND kind);
FACE copy_face(FACE f);
void draw_face(FACE face, GLfloat zrot, GLfloat yrot, BOOL left_eye, BOOL right_eye, GLfloat mouth_open, DIRECTION dir, OUTPUT_MODE mode);
void change_materials(FACE face, int* mats, int num_change);
#endif