Support gcc's -ansi flag: use "__asm__" instead of "asm".

Modules/_decimal/libmpdec/typearith.h

@@ -207,7 +207,7 @@ _mpd_mul_words(mpd_uint_t *hi, mpd_uint_t *lo, mpd_uint_t a, mpd_uint_t b)
 {
     mpd_uint_t h, l;
 
-    asm ( "mulq %3\n\t"
+    __asm__ ( "mulq %3\n\t"
               : "=d" (h), "=a" (l)
               : "%a" (a), "rm" (b)
               : "cc"
@@ -223,7 +223,7 @@ _mpd_div_words(mpd_uint_t *q, mpd_uint_t *r, mpd_uint_t hi, mpd_uint_t lo,
 {
     mpd_uint_t qq, rr;
 
-    asm ( "divq %4\n\t"
+    __asm__ ( "divq %4\n\t"
               : "=a" (qq), "=d" (rr)
               : "a" (lo), "d" (hi), "rm" (d)
               : "cc"
@@ -464,7 +464,7 @@ _mpd_mul_words(mpd_uint_t *hi, mpd_uint_t *lo, mpd_uint_t a, mpd_uint_t b)
 {
     mpd_uint_t h, l;
 
-    asm ( "mull %3\n\t"
+    __asm__ ( "mull %3\n\t"
               : "=d" (h), "=a" (l)
               : "%a" (a), "rm" (b)
               : "cc"
@@ -480,7 +480,7 @@ _mpd_div_words(mpd_uint_t *q, mpd_uint_t *r, mpd_uint_t hi, mpd_uint_t lo,
 {
     mpd_uint_t qq, rr;
 
-    asm ( "divl %4\n\t"
+    __asm__ ( "divl %4\n\t"
               : "=a" (qq), "=d" (rr)
               : "a" (lo), "d" (hi), "rm" (d)
               : "cc"

Modules/_decimal/libmpdec/umodarith.h

@@ -402,7 +402,7 @@ ppro_mulmod(mpd_uint_t a, mpd_uint_t b, double *dmod, uint32_t *dinvmod)
 {
     mpd_uint_t retval;
 
-    asm (
+    __asm__ (
             "fildl  %2\n\t"
             "fildl  %1\n\t"
             "fmulp  %%st, %%st(1)\n\t"
@@ -432,7 +432,7 @@ static inline void
 ppro_mulmod2c(mpd_uint_t *a0, mpd_uint_t *a1, mpd_uint_t w,
               double *dmod, uint32_t *dinvmod)
 {
-    asm (
+    __asm__ (
             "fildl  %2\n\t"
             "fildl  (%1)\n\t"
             "fmul   %%st(1), %%st\n\t"
@@ -471,7 +471,7 @@ static inline void
 ppro_mulmod2(mpd_uint_t *a0, mpd_uint_t b0, mpd_uint_t *a1, mpd_uint_t b1,
              double *dmod, uint32_t *dinvmod)
 {
-    asm (
+    __asm__ (
             "fildl  %3\n\t"
             "fildl  (%2)\n\t"
             "fmulp  %%st, %%st(1)\n\t"