never use libm with Intel compilers

Intel compilers include a highly optimized math library (libimf) that should be used instead of GNU libm. yes, this change is for ALL targets, including those that are not supported by the Intel compiler. there is no harm in doing this, and it is future-proof in the event that the Intel compilers support other architectures.
2026-05-11 17:50:00 +00:00 · 2016-10-25 21:15:26 -07:00
parent d6ef56c6db
commit 0d1b90286e
17 changed files with 39 additions and 1 deletions
--- a/config/armv7a/make_defs.mk
+++ b/config/armv7a/make_defs.mk
@@ -77,7 +77,9 @@ ARFLAGS        := cru
 # --- Determine the linker and related flags ---
 LINKER         := $(CC)
 SOFLAGS        := -shared
+ifneq ($(CC_VENDOR),icc)
 LDFLAGS        := -lm
+endif



--- a/config/armv8a/make_defs.mk
+++ b/config/armv8a/make_defs.mk
@@ -77,7 +77,9 @@ ARFLAGS        := cru
 # --- Determine the linker and related flags ---
 LINKER         := $(CC)
 SOFLAGS        := -shared
+ifneq ($(CC_VENDOR),icc)
 LDFLAGS        := -lm
+endif



--- a/config/bulldozer/make_defs.mk
+++ b/config/bulldozer/make_defs.mk
@@ -77,7 +77,9 @@ ARFLAGS        := cru
 # --- Determine the linker and related flags ---
 LINKER         := $(CC)
 SOFLAGS        := -shared
+ifneq ($(CC_VENDOR),icc)
 LDFLAGS        := -lm
+endif



--- a/config/carrizo/make_defs.mk
+++ b/config/carrizo/make_defs.mk
@@ -77,7 +77,9 @@ ARFLAGS        := cru
 # --- Determine the linker and related flags ---
 LINKER         := $(CC)
 SOFLAGS        := -shared
+ifneq ($(CC_VENDOR),icc)
 LDFLAGS        := -lm
+endif



--- a/config/cortex-a15/make_defs.mk
+++ b/config/cortex-a15/make_defs.mk
@@ -77,7 +77,9 @@ ARFLAGS        := cru
 # --- Determine the linker and related flags ---
 LINKER         := $(CC)
 SOFLAGS        := -shared
+ifneq ($(CC_VENDOR),icc)
 LDFLAGS        := -lm
+endif



--- a/config/cortex-a9/make_defs.mk
+++ b/config/cortex-a9/make_defs.mk
@@ -77,7 +77,9 @@ ARFLAGS        := cru
 # --- Determine the linker and related flags ---
 LINKER         := $(CC)
 SOFLAGS        := -shared
+ifneq ($(CC_VENDOR),icc)
 LDFLAGS        := -lm
+endif



--- a/config/dunnington/make_defs.mk
+++ b/config/dunnington/make_defs.mk
@@ -88,7 +88,9 @@ ARFLAGS        := cru
 # --- Determine the linker and related flags ---
 LINKER         := $(CC)
 SOFLAGS        := -shared
+ifneq ($(CC_VENDOR),icc)
 LDFLAGS        := -lm
+endif



--- a/config/haswell/make_defs.mk
+++ b/config/haswell/make_defs.mk
@@ -88,7 +88,9 @@ ARFLAGS        := cru
 # --- Determine the linker and related flags ---
 LINKER         := $(CC)
 SOFLAGS        := -shared
+ifneq ($(CC_VENDOR),icc)
 LDFLAGS        := -lm
+endif



--- a/config/knl/make_defs.mk
+++ b/config/knl/make_defs.mk
@@ -95,7 +95,11 @@ ARFLAGS        := cru
 # --- Determine the linker and related flags ---
 LINKER         := $(CC)
 SOFLAGS        := -shared
-LDFLAGS        := -lm -lmemkind
+ifeq ($(CC_VENDOR),icc)
+LDFLAGS        := -lmemkind
+else
+LDFLAGS        := -lmemkind -lm
+endif



--- a/config/loongson3a/make_defs.mk
+++ b/config/loongson3a/make_defs.mk
@@ -77,7 +77,9 @@ ARFLAGS        := cru
 # --- Determine the linker and related flags ---
 LINKER         := $(CC)
 SOFLAGS        := -shared
+ifneq ($(CC_VENDOR),icc)
 LDFLAGS        := -lm
+endif



--- a/config/mic/make_defs.mk
+++ b/config/mic/make_defs.mk
@@ -77,7 +77,11 @@ ARFLAGS        := cru
 # --- Determine the linker and related flags ---
 LINKER         := $(CC)
 SOFLAGS        := -shared
+ifeq ($(CC_VENDOR),icc)
+LDFLAGS        := -mmic
+else
 LDFLAGS        := -mmic -lm
+endif



--- a/config/piledriver/make_defs.mk
+++ b/config/piledriver/make_defs.mk
@@ -77,7 +77,9 @@ ARFLAGS        := cru
 # --- Determine the linker and related flags ---
 LINKER         := $(CC)
 SOFLAGS        := -shared
+ifneq ($(CC_VENDOR),icc)
 LDFLAGS        := -lm
+endif



--- a/config/pnacl/make_defs.mk
+++ b/config/pnacl/make_defs.mk
@@ -63,7 +63,9 @@ ARFLAGS        := rcs
 # --- Determine the linker and related flags ---
 LINKER         := $(CC)
 SOFLAGS        := 
+ifneq ($(CC_VENDOR),icc)
 LDFLAGS        := -lm
+endif

 # --- Determine the finalizer and related flags ---
 FINALIZER      := pnacl-finalize
--- a/config/power7/make_defs.mk
+++ b/config/power7/make_defs.mk
@@ -77,7 +77,9 @@ ARFLAGS        := cru
 # --- Determine the linker and related flags ---
 LINKER         := $(CC)
 SOFLAGS        := -shared
+ifneq ($(CC_VENDOR),icc)
 LDFLAGS        := -lm
+endif



--- a/config/reference/make_defs.mk
+++ b/config/reference/make_defs.mk
@@ -86,7 +86,9 @@ ARFLAGS        := cru
 # --- Determine the linker and related flags ---
 LINKER         := $(CC)
 SOFLAGS        := -shared
+ifneq ($(CC_VENDOR),icc)
 LDFLAGS        := -lm
+endif



--- a/config/sandybridge/make_defs.mk
+++ b/config/sandybridge/make_defs.mk
@@ -88,7 +88,9 @@ ARFLAGS        := cru
 # --- Determine the linker and related flags ---
 LINKER         := $(CC)
 SOFLAGS        := -shared
+ifneq ($(CC_VENDOR),icc)
 LDFLAGS        := -lm
+endif



--- a/config/template/make_defs.mk
+++ b/config/template/make_defs.mk
@@ -77,7 +77,9 @@ ARFLAGS        := cru
 # --- Determine the linker and related flags ---
 LINKER         := $(CC)
 SOFLAGS        := -shared
+ifneq ($(CC_VENDOR),icc)
 LDFLAGS        := -lm
+endif