mdbx: refine internal warnings control.

Makefile

@@ -23,17 +23,14 @@ suffix	?=
 
 CC	?= gcc
 CXX	?= g++
-XCFLAGS	?= -DNDEBUG=1 -DMDBX_DEBUG=0 -DLIBMDBX_EXPORTS=1
+ifeq ($(shell (export LC_ALL=C; ($(CC) --version 2>&1; $(CC) -v 2>&1) | grep -q -i 'e2k' && echo yes)),yes)
+CFLAGS	?= -O3 -g3 -Wall -Werror -Wextra -ffunction-sections -fPIC -fvisibility=hidden
+else
 CFLAGS	?= -O2 -g3 -Wall -Werror -Wextra -ffunction-sections -fPIC -fvisibility=hidden
-CFLAGS	+= -D_GNU_SOURCE=1 -std=gnu11 -pthread $(XCFLAGS)
-
-# temporary workaround for lcc's bug
-TARGET_ARCH_e2k = $(shell (export LC_ALL=C; ($(CC) --version 2>&1; $(CC) -v 2>&1) | grep -q -i 'e2k' && echo yes || echo no))
-ifeq ($(TARGET_ARCH_e2k),yes)
-TARGET_ARCH := e2k
-CFLAGS += -mtune=native -Wno-alignment-reduction-ignored
 endif
 
+XCFLAGS	?= -DNDEBUG=1 -DMDBX_DEBUG=0 -DLIBMDBX_EXPORTS=1
+CFLAGS	+= -D_GNU_SOURCE=1 -std=gnu11 -pthread $(XCFLAGS)
 CXXFLAGS = -std=c++11 $(filter-out -std=gnu11,$(CFLAGS))
 TESTDB	?= $(shell [ -d /dev/shm ] && echo /dev/shm || echo /tmp)/mdbx-check.db
 TESTLOG ?= $(shell [ -d /dev/shm ] && echo /dev/shm || echo /tmp)/mdbx-check.log

src/bits.h

@@ -25,7 +25,7 @@
 
 /* Features under development */
 #ifndef MDBX_DEVEL
-#   define MDBX_DEVEL 1
+#   define MDBX_DEVEL 0
 #endif
 
 /*----------------------------------------------------------------------------*/
@@ -98,10 +98,13 @@
 #   endif
 #endif /* -Wconstant-logical-operand */
 
-#if __has_warning("-Walignment-reduction-ignored") || defined(__e2k__) || defined(__ICC)
+#if defined(__LCC__) && (__LCC__ <= 121)
-#if defined(__ICC)
+    /* bug #2798 */
+#   pragma diag_suppress alignment_reduction_ignored
+#elif defined(__ICC)
 #   pragma warning(disable: 3453 1366)
-#elif defined(__clang__)
+#elif __has_warning("-Walignment-reduction-ignored")
+#   if defined(__clang__)
 #       pragma clang diagnostic ignored "-Walignment-reduction-ignored"
 #   elif defined(__GNUC__)
 #       pragma GCC diagnostic ignored "-Walignment-reduction-ignored"