diff --git a/libdmtx-0.7.5-c99.patch b/libdmtx-0.7.5-c99.patch
new file mode 100644
index 0000000..1ccf17f
--- /dev/null
+++ b/libdmtx-0.7.5-c99.patch
@@ -0,0 +1,36 @@
+diff -up libdmtx-0.7.5/test/multi_test/Makefile.am.std libdmtx-0.7.5/test/multi_test/Makefile.am
+--- libdmtx-0.7.5/test/multi_test/Makefile.am.std	2018-04-06 13:14:23.000000000 +0200
++++ libdmtx-0.7.5/test/multi_test/Makefile.am	2018-04-06 13:14:27.000000000 +0200
+@@ -1,4 +1,4 @@
+-AM_CPPFLAGS = -Wshadow -Wall -pedantic -ansi
++AM_CPPFLAGS = -Wshadow -Wall -pedantic -std=c99
+ 
+ check_PROGRAMS = multi_test
+ 
+diff -up libdmtx-0.7.5/test/rotate_test/Makefile.am.std libdmtx-0.7.5/test/rotate_test/Makefile.am
+--- libdmtx-0.7.5/test/rotate_test/Makefile.am.std	2018-04-06 13:14:13.000000000 +0200
++++ libdmtx-0.7.5/test/rotate_test/Makefile.am	2018-04-06 13:14:18.000000000 +0200
+@@ -1,4 +1,4 @@
+-AM_CPPFLAGS = -Wshadow -Wall -pedantic -ansi
++AM_CPPFLAGS = -Wshadow -Wall -pedantic -std=c99
+ 
+ check_PROGRAMS = rotate_test
+ 
+diff -up libdmtx-0.7.5/test/simple_test/Makefile.am.std libdmtx-0.7.5/test/simple_test/Makefile.am
+--- libdmtx-0.7.5/test/simple_test/Makefile.am.std	2018-04-06 13:13:59.000000000 +0200
++++ libdmtx-0.7.5/test/simple_test/Makefile.am	2018-04-06 13:14:04.000000000 +0200
+@@ -1,4 +1,4 @@
+-AM_CPPFLAGS = -Wshadow -Wall -pedantic -ansi
++AM_CPPFLAGS = -Wshadow -Wall -pedantic -std=c99
+ 
+ check_PROGRAMS = simple_test
+ 
+diff -up libdmtx-0.7.5/test/unit_test/Makefile.am.std libdmtx-0.7.5/test/unit_test/Makefile.am
+--- libdmtx-0.7.5/test/unit_test/Makefile.am.std	2018-04-06 13:13:41.000000000 +0200
++++ libdmtx-0.7.5/test/unit_test/Makefile.am	2018-04-06 13:13:53.000000000 +0200
+@@ -1,4 +1,4 @@
+-AM_CPPFLAGS = -Wshadow -Wall -pedantic -ansi
++AM_CPPFLAGS = -Wshadow -Wall -pedantic -std=c99
+ 
+ check_PROGRAMS = unit_test
+ 
diff --git a/libdmtx-0.7.5-math.patch b/libdmtx-0.7.5-math.patch
new file mode 100644
index 0000000..41c7557
--- /dev/null
+++ b/libdmtx-0.7.5-math.patch
@@ -0,0 +1,11 @@
+diff -up libdmtx-0.7.5/test/simple_test/simple_test.c.math libdmtx-0.7.5/test/simple_test/simple_test.c
+--- libdmtx-0.7.5/test/simple_test/simple_test.c.math	2018-04-06 13:19:44.000000000 +0200
++++ libdmtx-0.7.5/test/simple_test/simple_test.c	2018-04-06 13:19:52.000000000 +0200
+@@ -18,6 +18,7 @@
+ #include <stdio.h>
+ #include <string.h>
+ #include <assert.h>
++#include <math.h>
+ #include <dmtx.h>
+ 
+ int
diff --git a/libdmtx-0.7.5-size_t.patch b/libdmtx-0.7.5-size_t.patch
new file mode 100644
index 0000000..6dc5fce
--- /dev/null
+++ b/libdmtx-0.7.5-size_t.patch
@@ -0,0 +1,29 @@
+diff -up libdmtx-0.7.5/test/simple_test/simple_test.c.size_t libdmtx-0.7.5/test/simple_test/simple_test.c
+--- libdmtx-0.7.5/test/simple_test/simple_test.c.size_t	2018-04-06 13:16:35.000000000 +0200
++++ libdmtx-0.7.5/test/simple_test/simple_test.c	2018-04-06 13:17:14.000000000 +0200
+@@ -58,9 +58,9 @@ main(int argc, char *argv[])
+ 
+    dmtxEncodeDestroy(&enc);
+ 
+-   fprintf(stdout, "width:  \"%d\"\n", width);
+-   fprintf(stdout, "height: \"%d\"\n", height);
+-   fprintf(stdout, "bpp:    \"%d\"\n", bytesPerPixel);
++   fprintf(stdout, "width:  \"%zd\"\n", width);
++   fprintf(stdout, "height: \"%zd\"\n", height);
++   fprintf(stdout, "bpp:    \"%zd\"\n", bytesPerPixel);
+ 
+    for (int i=0; i<width*height; i++){
+       fprintf(stdout, "%d", (pxl[i*3])==0);
+@@ -81,9 +81,9 @@ main(int argc, char *argv[])
+    if(reg != NULL) {
+       msg = dmtxDecodeMatrixRegion(dec, reg, DmtxUndefined);
+ 
+-      fprintf(stdout, "msg->arraySize :  \"%d\"\n", msg->arraySize );
+-      fprintf(stdout, "msg->codeSize  :  \"%d\"\n", msg->codeSize  );
+-      fprintf(stdout, "msg->outputSize:  \"%d\"\n", msg->outputSize);
++      fprintf(stdout, "msg->arraySize :  \"%zd\"\n", msg->arraySize );
++      fprintf(stdout, "msg->codeSize  :  \"%zd\"\n", msg->codeSize  );
++      fprintf(stdout, "msg->outputSize:  \"%zd\"\n", msg->outputSize);
+       int oned = sqrt(msg->arraySize);
+       for (int i=0; i<msg->arraySize; i++){
+          fprintf(stdout, " %c.", msg->array[i]);
diff --git a/libdmtx-0.7.5.tar.gz b/libdmtx-0.7.5.tar.gz
new file mode 100644
index 0000000..05dae8e
Binary files /dev/null and b/libdmtx-0.7.5.tar.gz differ
diff --git a/libdmtx.spec b/libdmtx.spec
new file mode 100644
index 0000000..d04a714
--- /dev/null
+++ b/libdmtx.spec
@@ -0,0 +1,87 @@
+Name:           libdmtx
+Version:        0.7.5
+Release:        1
+Summary:        Library for working with Data Matrix 2D bar-codes
+
+License:        BSD
+URL:            https://github.com/dmtx
+Source0:        https://github.com/dmtx/%{name}/archive/v%{version}/%{name}-%{version}.tar.gz
+# https://github.com/dmtx/libdmtx/pull/13
+Patch0:         libdmtx-0.7.5-c99.patch
+# https://github.com/dmtx/libdmtx/pull/14
+Patch1:         libdmtx-0.7.5-size_t.patch
+# https://github.com/dmtx/libdmtx/pull/12
+Patch2:         libdmtx-0.7.5-math.patch
+
+BuildRequires:  gcc
+BuildRequires:  libtool
+BuildRequires:  make
+Obsoletes:      php-libdmtx < 0.7.4
+Obsoletes:      python-libdmtx < 0.7.4
+Obsoletes:      ruby-libdmtx < 0.7.4
+
+
+%description
+libdmtx is open source software for reading and writing Data Matrix 2D
+bar-codes on Linux, Unix, OS X, Windows, and mobile devices. At its core
+libdmtx is a shared library, allowing C/C++ programs to use its capabilities
+without restrictions or overhead.
+
+The included utility programs, dmtxread and dmtxwrite, provide the official
+interface to libdmtx from the command line, and also serve as a good reference
+for programmers who wish to write their own programs that interact with
+libdmtx. All of the software in the libdmtx package is distributed under
+the LGPLv2 and can be used freely under these terms.
+
+
+%package        devel
+Summary:        Development files for %{name}
+Requires:       %{name} = %{version}-%{release}
+
+%description    devel
+The %{name}-devel package contains libraries and header files for
+developing applications that use %{name}.
+
+
+%prep
+%autosetup -p1
+
+./autogen.sh
+
+
+%build
+%configure --disable-static
+make %{?_smp_mflags}
+
+
+%install
+make install DESTDIR=$RPM_BUILD_ROOT
+find $RPM_BUILD_ROOT -name '*.la' -exec rm -f {} ';'
+
+
+%check
+make check
+pushd test
+for t in simple
+do
+    ./${t}_test/${t}_test
+done
+popd
+
+
+%files
+%license LICENSE
+%doc AUTHORS ChangeLog KNOWNBUG README README.linux TODO
+%{_libdir}/%{name}.so.*
+
+%files devel
+%doc
+%{_includedir}/*
+%{_libdir}/%{name}.so
+%{_libdir}/pkgconfig/%{name}.pc
+%{_mandir}/man3/%{name}.3*
+
+
+%changelog
+* Thu Jul 14 2022 misaka00251 <misaka00251@misakanet.cn> - 0.7.5-1
+- Init package
diff --git a/libdmtx.yaml b/libdmtx.yaml
new file mode 100644
index 0000000..e975b31
--- /dev/null
+++ b/libdmtx.yaml
@@ -0,0 +1,4 @@
+version_control: github
+src_repo: dmtx/libdmtx
+tag_prefix: "^v"
+separator: "."