GHA/configure-vs-cmake: add Windows build, fix issues

- configure: disable pthreads by default on Windows.
- configure: disable detecting `fseeko()` on Windows.
  (It exists in mingw-w64 2.0.0 and newer, but it's permanently ignored
  in CMake, as this function is never necessary on Windows.)
- extend existing exceptions with their Windows variants.
- `lib/formdata.c`: prioritize `_fseeki64()` over `fseeko()`.
  To reduce the difference between Windows builds, which now all use
  `_fseeki64()`.
- cmake: perm-enable `HAVE_DIRENT_H` and `HAVE_OPENDIR` for mingw-w64,
  to match configure.
  Follow-up to bfe54b0e88 #13137
  This in theory could make the dir listing feature work in mingw-w64
  build, but in my tests (on WINE) it failed at the preceding `open()`
  call.
- cmake: perm-enable `HAVE_STRINGS_H` and `HAVE_UTIME_H` for mingw-w64,
  to match configure. (They are wrappers and make no difference in the build.)

Also:
- configure: sync `USE_MANUAL` macro with cmake, by only setting it for
  `src`. Drop checker exception.
- CI: use `--disable-dependency-tracking` in existing jobs.
- CI: install packages before git checkout, in existing jobs.

Closes #14678

.github/scripts/cmp-config.pl

@@ -37,10 +37,15 @@ my %remove = (
     '#define _FILE_OFFSET_BITS 64' => 1,
     '#define CURL_EXTERN_SYMBOL' => 1,
     '#define CURL_SA_FAMILY_T sa_family_t' => 1,
+    '#define CURL_SA_FAMILY_T ADDRESS_FAMILY' => 1,
+    '#define HAVE_ADDRESS_FAMILY 1' => 1,
     '#define GETHOSTNAME_TYPE_ARG2 size_t' => 1,
+    '#define GETHOSTNAME_TYPE_ARG2 int' => 1,
     '#define HAVE_BROTLI 1' => 1,
     '#define HAVE_BROTLI_DECODE_H 1' => 1,
     '#define HAVE_DECL_GETPWUID_R 1' => 1,
+    '#define HAVE_DECL_GETPWUID_R 0' => 1,
+    '#define HAVE_DECL_GETPWUID_R_MISSING 1' => 1,
     '#define HAVE_DLFCN_H 1' => 1,
     '#define HAVE_GETHOSTBYNAME 1' => 1,
     '#define HAVE_INTTYPES_H 1' => 1,
@@ -78,7 +83,6 @@ my %remove = (
     '#define PACKAGE_URL ""' => 1,
     '#define PACKAGE_VERSION "-"' => 1,
     '#define SIZEOF_LONG_LONG 8' => 1,
-    '#define USE_MANUAL 1' => 1,
     '#define VERSION "-"' => 1,
     );
 

.github/workflows/configure-vs-cmake.yml

@@ -37,7 +37,7 @@ jobs:
       - name: run configure --with-openssl
         run: |
           autoreconf -fi
-          ./configure --with-openssl --without-libpsl
+          ./configure --disable-dependency-tracking --with-openssl --without-libpsl
 
       - name: run cmake
         run: |
@@ -49,16 +49,16 @@ jobs:
   check-macos:
     runs-on: macos-latest
     steps:
-      - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4
-
       - name: install packages
         run: |
           while [[ $? == 0 ]]; do for i in 1 2 3; do brew update && brew install libtool autoconf automake && break 2 || { echo Error: wait to try again; sleep 10; } done; false Too many retries; done
 
+      - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4
+
       - name: run configure --with-openssl
         run: |
           autoreconf -fi
-          ./configure --with-openssl --without-libpsl
+          ./configure --disable-dependency-tracking --with-openssl --without-libpsl
 
       - name: run cmake
         run: |
@@ -68,3 +68,28 @@ jobs:
 
       - name: compare generated curl_config.h files
         run: ./.github/scripts/cmp-config.pl lib/curl_config.h build/lib/curl_config.h
+
+  check-windows:
+    runs-on: ubuntu-latest
+    env:
+      TRIPLET: 'x86_64-w64-mingw32'
+    steps:
+      - name: install packages
+        run: sudo apt-get --quiet 2 --option Dpkg::Use-Pty=0 install mingw-w64
+
+      - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4
+
+      - name: run configure --with-schannel
+        run: |
+          autoreconf -fi
+          ./configure --disable-dependency-tracking --with-schannel --without-libpsl --host=${TRIPLET} \
+
+      - name: run cmake
+        run: |
+          cmake -B build -DCURL_USE_SCHANNEL=ON -DCURL_USE_LIBPSL=OFF \
+            -DCMAKE_SYSTEM_NAME=Windows \
+            -DCMAKE_C_COMPILER_TARGET=${TRIPLET} \
+            -DCMAKE_C_COMPILER=${TRIPLET}-gcc
+
+      - name: compare generated curl_config.h files
+        run: ./.github/scripts/cmp-config.pl lib/curl_config.h build/lib/curl_config.h