diff --git a/_build.sh b/_build.sh
index 3dd0c9826..fa3740e24 100755
--- a/_build.sh
+++ b/_build.sh
@@ -346,10 +346,7 @@ elif [[ "${_CONFIG}" = *'noh3'* ]]; then
   _FLAV='-noh3'
 fi
 
-# For 'configure'-based builds.
-# This is more or less guesswork and this warning remains:
-#    `configure: WARNING: using cross tools not prefixed with host triplet`
-# Even with `_CCPREFIX` provided.
+# Required for an ugly OpenSSL hack.
 # https://clang.llvm.org/docs/CrossCompilation.html
 case "${_HOST}" in
   win)   _HOST_TRIPLET="${unamem}-pc-mingw32";;
@@ -770,7 +767,6 @@ build_single_target() {
   export _LDFLAGS_GLOBAL=''
   export _LDFLAGS_BIN_GLOBAL=''
   export _LDFLAGS_CXX_GLOBAL=''  # CMake uses this
-  export _CONFIGURE_GLOBAL=''
   export _CMAKE_GLOBAL='-Wno-dev'  # Suppress CMake warnings meant for upstream developers
   export _CMAKE_CXX_GLOBAL=''
 
@@ -922,13 +918,6 @@ build_single_target() {
   _CMAKE_GLOBAL+=' -DCMAKE_INSTALL_MESSAGE=NEVER'
   _CMAKE_GLOBAL+=" -DCMAKE_INSTALL_PREFIX=${_PREFIX}"
 
-  # 'configure' naming conventions:
-  # - '--build' is the host we are running the build on.
-  #   We call it '_HOST_TRIPLET' (and `_HOST` for our short name).
-  # - '--host' is the host we are building the binaries for.
-  #   We call it '_TRIPLET' (and '_OS' for our short name).
-  _CONFIGURE_GLOBAL+=" --build=${_HOST_TRIPLET} --host=${_TRIPLET}"
-
   # Hide symbols by default. Our goal is to create curl and libcurl, and to
   # export the libcurl interface from the libcurl shared lib, without exporting
   # the interfaces of its dependencies statically linked to the libcurl shared
@@ -1033,10 +1022,8 @@ build_single_target() {
     else
       _CC_GLOBAL="clang${_CCSUFFIX} --target=${_TRIPLET}"
     fi
-    _CONFIGURE_GLOBAL+=" --target=${_TRIPLET}"
     if [ -n "${_SYSROOT}" ]; then
       _CC_GLOBAL+=" --sysroot=${_SYSROOT}"
-      _CONFIGURE_GLOBAL+=" --with-sysroot=${_SYSROOT}"
     fi
     if [ "${_HOST}" = 'linux' ] && [ "${_OS}" = 'win' ]; then
       # We used to pass this via CFLAGS for CMake to make it detect llvm/clang,
@@ -1177,10 +1164,7 @@ build_single_target() {
     #   https://developer.apple.com/support/xcode/
 
     # Explicitly set the SDK root. This forces clang to drop /usr/local
-    # from the list of default header search paths. This is necessary
-    # to avoid ./configure picking up e.g. installed Homebrew package
-    # headers instead of the explicitly specified custom package headers,
-    # e.g. with OpenSSL.
+    # from the list of default header search paths.
     # We set it for all build tools for macOS to gain control over this.
     _SYSROOT="$(xcrun -sdk macosx --show-sdk-path)"  # E.g. /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk
 
@@ -1197,7 +1181,6 @@ build_single_target() {
     if [ -n "${_SYSROOT}" ]; then
       _CMAKE_GLOBAL+=" -DCMAKE_OSX_SYSROOT=${_SYSROOT}"
       _CC_GLOBAL+=" --sysroot=${_SYSROOT}"
-      _CONFIGURE_GLOBAL+=" --with-sysroot=${_SYSROOT}"
     fi
   fi
 
@@ -1458,8 +1441,6 @@ build_single_target() {
     fi
   fi
 
-  _CONFIGURE_GLOBAL+=" --prefix=${_PREFIX} --disable-dependency-tracking --disable-silent-rules"
-
   # Unified, per-target package: Initialize
   export _UNIPKG="curl-${CURL_VER_}${_REVSUFFIX}${_PKGSUFFIX}${_FLAV}"
   rm -r -f "${_UNIPKG:?}"
diff --git a/curl.sh b/curl.sh
index 5a4c32ddc..a0e685b0c 100755
--- a/curl.sh
+++ b/curl.sh
@@ -481,13 +481,11 @@ _VER="$1"
   done
 
   if [[ "${_CONFIG}" != *'nocurltool'* ]]; then
-    # Execute curl and compiled-in dependency code. This is not secure, but
-    # the build process already requires executing external code
-    # (e.g. configure scripts) on the build machine, so this does not make
-    # it worse, except that it requires installing WINE on a compatible CPU
-    # (and a QEMU setup on non-compatible ones). It would be best to extract
-    # `--version` output directly from the binary as strings, but curl creates
-    # most of these strings dynamically at runtime, so this is not possible
+    # Execute curl and compiled-in dependency code. This is not secure.
+    # It also requires installing WINE on a compatible CPU (and a QEMU setup
+    # on non-compatible ones). It would be best to extract `--version` output
+    # directly from the binary as strings, but curl creates most of these
+    # strings dynamically at runtime, so this is not possible
     # (as of curl 7.83.1).
     ${_RUN_BIN} "${bin}" --disable --version | tee "curl-${_CPU}.txt" || true
   fi