diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index b42462b1..457216a7 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -155,6 +155,14 @@ jobs:
           cat valgrind_test.log || true
           cat gcc_errors_*.log || true
 
+  amalgam:
+    runs-on: ubuntu-22.04
+    steps:
+      - uses: actions/checkout@v2
+      - name: install dependencies
+        run: |
+          make amalgamated_timing
+
   CMake:
     runs-on: ${{ matrix.os }}
     strategy:
diff --git a/makefile b/makefile
index e92e0e66..b2cb16a3 100644
--- a/makefile
+++ b/makefile
@@ -69,9 +69,11 @@ profiled:
 	make CFLAGS="$(CFLAGS) -fbranch-probabilities"
 
 #make a single object profiled library
-profiled_single: pre_gen
+amalgamated_timing: pre_gen
 	$(CC) $(LTM_CFLAGS) -fprofile-arcs -c pre_gen/tommath_amalgam.c -o tommath_amalgam.o
 	$(CC) $(LTM_CFLAGS) -DMP_VERSION=\"before\" demo/timing.c tommath_amalgam.o -lgcov -o timing
+
+profiled_single: amalgamated_timing
 	./timing
 	rm -f *.o timing
 	$(CC) $(LTM_CFLAGS) -fbranch-probabilities -c pre_gen/tommath_amalgam.c -o tommath_amalgam.o
diff --git a/s_mp_fp_log_d.c b/s_mp_fp_log_d.c
index cbe3b072..71d82dc4 100644
--- a/s_mp_fp_log_d.c
+++ b/s_mp_fp_log_d.c
@@ -3,7 +3,7 @@
 /* LibTomMath, multiple-precision integer library -- Tom St Denis */
 /* SPDX-License-Identifier: Unlicense */
 
-static mp_word s_mp_flog2_mp_word(mp_word value)
+static mp_word s_mp_flog2_mp_word_d(mp_word value)
 {
    mp_word r = 0u;
    while ((value >>= 1) != 0u) {
@@ -13,12 +13,12 @@ static mp_word s_mp_flog2_mp_word(mp_word value)
 }
 
 /* Fixed point bitwise logarithm base two of "x" with precision "p"  */
-static mp_err s_mp_fp_log_fraction(mp_word x, int p, mp_word *c)
+static mp_err s_mp_fp_log_fraction_d(mp_word x, int p, mp_word *c)
 {
    mp_word b, L_out, L, a_bar, twoep;
    int i;
 
-   L = s_mp_flog2_mp_word(x);
+   L = s_mp_flog2_mp_word_d(x);
 
    if ((L + (mp_word)p) > MP_UPPER_LIMIT_FIXED_LOG) {
       return MP_VAL;
@@ -60,14 +60,14 @@ mp_err s_mp_fp_log_d(const mp_int *a, mp_word *c)
       if ((err = mp_div_2d(a, la - prec, &t, NULL)) != MP_OKAY)                                           goto LTM_ERR;
       tmp = mp_get_u64(&t);
       /* Compute the low precision approximation for the fractional part */
-      if ((err = s_mp_fp_log_fraction(tmp, prec, &la_word)) != MP_OKAY)                                   goto LTM_ERR;
+      if ((err = s_mp_fp_log_fraction_d(tmp, prec, &la_word)) != MP_OKAY)                                   goto LTM_ERR;
       /* Compute the integer part and add it */
       tmp = ((mp_word)(la - prec))<<prec;
       la_word += tmp;
       mp_clear(&t);
    } else {
       tmp = mp_get_u64(a);
-      if ((err = s_mp_fp_log_fraction(tmp, prec, &la_word)) != MP_OKAY) {
+      if ((err = s_mp_fp_log_fraction_d(tmp, prec, &la_word)) != MP_OKAY) {
          return err;
       }
    }
diff --git a/tommath_class.h b/tommath_class.h
index 911cdcb2..e08bc5f3 100644
--- a/tommath_class.h
+++ b/tommath_class.h
@@ -1091,8 +1091,8 @@
 #   define MP_DIV_2D_C
 #   define MP_GET_I64_C
 #   define MP_INIT_C
-#   define S_MP_FLOG2_MP_WORD_C
-#   define S_MP_FP_LOG_FRACTION_C
+#   define S_MP_FLOG2_MP_WORD_D_C
+#   define S_MP_FP_LOG_FRACTION_D_C
 #endif
 
 #if defined(S_MP_GET_BIT_C)