M_PI               86 ext/gd/gd.c    #define M_PI 3.14159265358979323846
M_PI                5 ext/gd/libgd/gd_matrix.c # define M_PI 3.14159265358979323846
M_PI              109 ext/standard/php_math.h #define M_PI           3.14159265358979323846  /* pi */
M_PI               62 main/win95nt.h #define M_PI             3.14159265358979323846