From: Nathan Moinvaziri <nathan@nathanm.com>
Date: Sat, 17 Jan 2026 16:43:26 +0000 (-0800)
Subject: Remove architecture-specific compile definitions from build system
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=25e2dc51f64a19adb9d926b8a0c0e14ec7a4ebbd;p=thirdparty%2Fzlib-ng.git

Remove architecture-specific compile definitions from build system
---

diff --git a/cmake/detect-arch.cmake b/cmake/detect-arch.cmake
index bebb26f58..3f8e2c4da 100644
--- a/cmake/detect-arch.cmake
+++ b/cmake/detect-arch.cmake
@@ -43,7 +43,6 @@ string(TOLOWER "${ARCH}" ARCH)
 if("${ARCH}" MATCHES "(x86(_32|_64)?|amd64|x64|i[3-6]86)")
     set(BASEARCH "x86")
     set(BASEARCH_X86_FOUND TRUE)
-    add_compile_definitions(ARCH_X86)
     if("${ARCH}" MATCHES "(x86_64|amd64|x64)")
         set(ARCH_BITS 64)
     else()
@@ -52,7 +51,6 @@ if("${ARCH}" MATCHES "(x86(_32|_64)?|amd64|x64|i[3-6]86)")
 elseif("${ARCH}" MATCHES "(aarch64|arm64(ec)?|aarch32|arm(v[0-9])?|cortex)")
     set(BASEARCH "arm")
     set(BASEARCH_ARM_FOUND TRUE)
-    add_compile_definitions(ARCH_ARM)
     if("${ARCH}" MATCHES "(aarch64|arm64(ec)?)")
         set(ARCH_BITS 64)
     else()
@@ -61,7 +59,6 @@ elseif("${ARCH}" MATCHES "(aarch64|arm64(ec)?|aarch32|arm(v[0-9])?|cortex)")
 elseif("${ARCH}" MATCHES "(ppc|powerpc)(64)?(le)?")
     set(BASEARCH "ppc")
     set(BASEARCH_PPC_FOUND TRUE)
-    add_compile_definitions(ARCH_POWER)
     if("${ARCH}" MATCHES "(ppc|powerpc)64(le)?")
         set(ARCH_BITS 64)
     else()
@@ -70,22 +67,18 @@ elseif("${ARCH}" MATCHES "(ppc|powerpc)(64)?(le)?")
 elseif("${ARCH}" MATCHES "alpha")
     set(BASEARCH "alpha")
     set(BASEARCH_ALPHA_FOUND TRUE)
-    add_compile_definitions(ARCH_ALPHA)
     set(ARCH_BITS 64)
 elseif("${ARCH}" MATCHES "blackfin")
     set(BASEARCH "blackfin")
     set(BASEARCH_BLACKFIN_FOUND TRUE)
-    add_compile_definitions(ARCH_BLACKFIN)
     set(ARCH_BITS 32)
 elseif("${ARCH}" MATCHES "ia64")
     set(BASEARCH "ia64")
     set(BASEARCH_IA64_FOUND TRUE)
-    add_compile_definitions(ARCH_IA64)
     set(ARCH_BITS 64)
 elseif("${ARCH}" MATCHES "mips(isa)?(64)?")
     set(BASEARCH "mips")
     set(BASEARCH_MIPS_FOUND TRUE)
-    add_compile_definitions(ARCH_MIPS)
     if("${ARCH}" MATCHES "mips(isa)?64")
         set(ARCH_BITS 64)
     else()
@@ -94,17 +87,14 @@ elseif("${ARCH}" MATCHES "mips(isa)?(64)?")
 elseif("${ARCH}" MATCHES "m68k")
     set(BASEARCH "m68k")
     set(BASEARCH_M68K_FOUND TRUE)
-    add_compile_definitions(ARCH_M68K)
     set(ARCH_BITS 32)
 elseif("${ARCH}" MATCHES "sh")
     set(BASEARCH "sh")
     set(BASEARCH_SH_FOUND TRUE)
-    add_compile_definitions(ARCH_SH)
     set(ARCH_BITS 32)
 elseif("${ARCH}" MATCHES "sparc(v)?[89]?(64)?")
     set(BASEARCH "sparc")
     set(BASEARCH_SPARC_FOUND TRUE)
-    add_compile_definitions(ARCH_SPARC)
     if("${ARCH}" MATCHES "(sparc64|sparc(v)?9)")
         set(ARCH_BITS 64)
     else()
@@ -113,7 +103,6 @@ elseif("${ARCH}" MATCHES "sparc(v)?[89]?(64)?")
 elseif("${ARCH}" MATCHES "s3[679]0x?")
     set(BASEARCH "s360")
     set(BASEARCH_S360_FOUND TRUE)
-    add_compile_definitions(ARCH_S390)
     if("${ARCH}" MATCHES "s3[679]0x")
         set(ARCH_BITS 64)
     else()
@@ -122,7 +111,6 @@ elseif("${ARCH}" MATCHES "s3[679]0x?")
 elseif("${ARCH}" MATCHES "(parisc|hppa)(64)?")
     set(BASEARCH "parisc")
     set(BASEARCH_PARISC_FOUND TRUE)
-    add_compile_definitions(ARCH_PARISC)
     if("${ARCH}" MATCHES "(parisc|hppa)64")
         set(ARCH_BITS 64)
     else()
@@ -131,12 +119,10 @@ elseif("${ARCH}" MATCHES "(parisc|hppa)(64)?")
 elseif("${ARCH}" MATCHES "rs6000")
     set(BASEARCH "rs6000")
     set(BASEARCH_RS6000_FOUND TRUE)
-    add_compile_definitions(ARCH_RS6000)
     set(ARCH_BITS 32)
 elseif("${ARCH}" MATCHES "riscv(32|64)")
     set(BASEARCH "riscv")
     set(BASEARCH_RISCV_FOUND TRUE)
-    add_compile_definitions(ARCH_RISCV)
     if("${ARCH}" MATCHES "riscv64")
         set(ARCH_BITS 64)
     else()
@@ -145,12 +131,10 @@ elseif("${ARCH}" MATCHES "riscv(32|64)")
 elseif("${ARCH}" MATCHES "(loong64|loongarch64)")
     set(BASEARCH "loongarch")
     set(BASEARCH_LOONGARCH_FOUND TRUE)
-    add_compile_definitions(ARCH_LOONGARCH)
     set(ARCH_BITS 64)
 elseif("${ARCH}" MATCHES "wasm(32|64)")
     set(BASEARCH "wasm32")
     set(BASEARCH_WASM32_FOUND TRUE)
-    add_compile_definitions(ARCH_WASM)
     if("${ARCH}" MATCHES "wasm64")
         set(ARCH_BITS 64)
     else()
@@ -159,7 +143,6 @@ elseif("${ARCH}" MATCHES "wasm(32|64)")
 else()
     set(BASEARCH "x86")
     set(BASEARCH_X86_FOUND TRUE)
-    add_compile_definitions(ARCH_X86)
     set(ARCH_BITS 32)
     message(STATUS "Basearch '${ARCH}' not recognized, defaulting to 'x86'.")
 endif()
@@ -167,11 +150,9 @@ endif()
 if (ARCH_BITS EQUAL 64)
     set(ARCH_64BIT TRUE)
     set(ARCH_32BIT FALSE)
-    add_compile_definitions(ARCH_64BIT)
 else()
     set(ARCH_64BIT FALSE)
     set(ARCH_32BIT TRUE)
-    add_compile_definitions(ARCH_32BIT)
 endif()
 
 message(STATUS "Basearch of '${ARCH}' (${ARCH_BITS}bit) has been detected as: '${BASEARCH}'")
diff --git a/configure b/configure
index 42ab602f3..b1d32c587 100755
--- a/configure
+++ b/configure
@@ -1873,22 +1873,12 @@ ARCHDIR='arch/generic'
 ARCH_STATIC_OBJS=''
 ARCH_SHARED_OBJS=''
 
-# Set ARCH bitness defines
-if test -n "$ARCH_64BIT"; then
-    CFLAGS="${CFLAGS} -DARCH_64BIT"
-    SFLAGS="${SFLAGS} -DARCH_64BIT"
-elif test -n "$ARCH_32BIT"; then
-    CFLAGS="${CFLAGS} -DARCH_32BIT"
-    SFLAGS="${SFLAGS} -DARCH_32BIT"
-fi
 
 # Set ARCH specific FLAGS
 case "${ARCH}" in
     # x86/amd64 specific optimizations
     i386 | i486 | i586 | i686 | amd64 | x86_64)
         ARCHDIR=arch/x86
-        CFLAGS="${CFLAGS} -DARCH_X86"
-        SFLAGS="${SFLAGS} -DARCH_X86"
 
         # Enable arch-specific optimizations
         if test $without_optimizations -eq 0; then
@@ -2017,8 +2007,6 @@ case "${ARCH}" in
         esac
 
         ARCHDIR=arch/arm
-        CFLAGS="${CFLAGS} -DARCH_ARM"
-        SFLAGS="${SFLAGS} -DARCH_ARM"
 
         cat > $test.c << EOF
 int main() { return 0; }
@@ -2140,8 +2128,6 @@ EOF
         esac
 
         ARCHDIR=arch/power
-        CFLAGS="${CFLAGS} -DARCH_POWER"
-        SFLAGS="${SFLAGS} -DARCH_POWER"
 
         if test $without_optimizations -eq 0; then
 
@@ -2191,8 +2177,6 @@ EOF
     riscv64)
         [ ! -z $CROSS_PREFIX ] && QEMU_ARCH=riscv64
         ARCHDIR=arch/riscv
-        CFLAGS="${CFLAGS} -DARCH_RISCV"
-        SFLAGS="${SFLAGS} -DARCH_RISCV"
 
         if test $without_optimizations -eq 0; then
             if test $buildrvv -eq 1 -o $buildzbc -eq 1; then
@@ -2231,8 +2215,6 @@ EOF
     s390x)
         [ ! -z $CROSS_PREFIX ] && QEMU_ARCH=s390x
         ARCHDIR=arch/s390
-        CFLAGS="${CFLAGS} -DARCH_S390"
-        SFLAGS="${SFLAGS} -DARCH_S390"
 
         if test $without_optimizations -eq 0; then
             if test $buildcrc32vx -eq 1; then
@@ -2273,8 +2255,6 @@ EOF
     # loongarch specific optimizations
     loongarch64)
         ARCHDIR=arch/loongarch
-        CFLAGS="${CFLAGS} -DARCH_LOONGARCH"
-        SFLAGS="${SFLAGS} -DARCH_LOONGARCH"
 
         # Enable arch-specific optimizations
         if test $without_optimizations -eq 0; then
diff --git a/zbuild.h b/zbuild.h
index 1d5b6286b..ff7f739a5 100644
--- a/zbuild.h
+++ b/zbuild.h
@@ -18,6 +18,8 @@
 #include <stdint.h>
 #include <stdio.h>
 
+#include "zarch.h"
+
 /* Determine compiler version of C Standard */
 #ifdef __STDC_VERSION__
 #  if __STDC_VERSION__ >= 199901L